Talbotia: for Percy Amaury Talbot (1877-1945), a British plant collector in Nigeria, author of In the Shadow of the Bush (1912), and his wife, Dorothy A. Talbot (1871-1916), author of The Ibibios of Southern Nigeria (1915). (CRC World Dictionary of Plant Names)

tapscottii: for Sydney Tapscott (fl. 1930), farmer, miner, and well-known collector and photographer of plants in South Africa, Zambia and Botswana.

taubertiana/taubertii: possibly for Paul Hermann Wilhelm Taubert (1862-1897), German botanist, traveller, illustrator and plant name author.

Tavaresia/tavaresii: for Joaquim da Silva Tavares (1866-1931), Portuguese naturalist, clergyman, entomologist, and traveller. (CRC World Dictionary of Plant Names)

taylori/taylorianus/taylorii: for (1) Hugh Colin Taylor (1925-1999), South African ecologist and plant collector, first a fire ecologist with the Department of Agriculture and then transferred to Division of Botany (now SANBI), particularly interested in fynbos vegetation and ecology (Aspalathus, Trieenea) (Sabonet News, JSTOR; Gunn & Codd); (2) Edward Taylor (1848-1928/1935) of Southborough, Kent, British retired grocer and grower of succulent plants (Conophytum, Corpuscularia) (Etymological Dictionary of Succulent Plant Names, David Hollombe, pers. comm.); (3) A. Taylor, collector of Isopterygium taylorii in the Cape Province, 1924; (4) William Ernest Taylor (1856-1927), British missionary and Swahili scholar (Aneilema, Catunaregam, Cyperus, Fimbristylis) (JSTOR); (5) Peter Geoffrey Taylor (1926- ) (Phyllanthus) (JSTOR); (6) the Taylor Herbar-ium at Harvard, named for botanist Thomas Taylor, where William Stanger collected the type specimen of Cladia taylorii. (David Hollombe, pers. comm.)

Tayloria: for Thomas Taylor (1775-1848), Irish physician, professor of botany and natural history, and bryologist who prepared Muscologia Britannica (1818) with William Jackson Hooker and also the section on lichens for James Townsend Mackay’s Flora Hibernica (1836).

tayloriae: for Anne Taylor of Oudtshoorn. (David Hollombe, pers. comm.)

teaguei: for A.J. Teague (1885-?), who collected Blepharis teaguei in Zimbabwe in 1915.

Teclea: for St. Takla Hemanout, son of an Ethiopian priest, a legendary protagonist of the Coptic Church, recognized as a saint. (CRC World Dictionary of Plant Names)

Teedia: for Johann Georg Teede, a German naturalist who collected in Portugal and Surinam before 1799 and is mentioned in the Journal für die Botanik dated 1799. The name Teedia was published by Karl Asmund Rudolphi. There was another Teede who collected in Africa in 1896 but that was someone else. (Hugh Clarke, pers. comm.)

teixeirae: obviously for someone name Teixeira, but since this is a fairly common name, it's hard to say which one is honored here. The taxa Crotalaria teixeirae and Nesaea teixeirae were collected in Angola, and of the botanists and collectors named Teixeira, only M.A. Pimentel Teixeira and Joachim Martinho Lopes de Brito Teixeira (fl. 1950-1967) collected in Angola. David Hollombe advised that Nesaea teixeirae was named for a B. Teixeira. The 'ae' ending which normally indicates a woman is also used for any names that end in 'a'.

templemannii (Gladiolus, Pillansia):

Tenrhynea: for William ten Rhyne (1647-1700), a Dutch physician with the East India Company who collected at the Cape. (Elsa Pooley)

Teucrium: possibly for Teucer, founder of the town of Salamis on Cyprus. (CRC World Dictionary of Plant Names)

thaliana: for Johannes Thal (1542-1583), German physician and botanist who discovered Arabidopsis thaliana in the Harz Mountains and originally called it Pilosella siliquosa. Its current name was finally settled on in his honor in 1842.

theartii: for Major Ian (Jan?) Theart (fl. 1990-1997) of the 9th South African Infantry Battalion, a keen gardener and succulent enthusiast.

Theilera/theileri: for Sir Arnold Theiler (1867-1936), Swiss-born English veterinarian and botanist who worked in South Africa, considered the 'father of veterinary science in South Africa,' developed vaccines against smallpox and rinderpest. "Theiler was the first Director of the Onderstepoort Veterinary Research Institute outside Pretoria. This institute under his leadership carried out research on African horse sickness, sleeping sickness, malaria, East Coast fever (Theileria parva) and tick-borne diseases such as redwater, heartwater and biliary. A Faculty of Veterinary Science was established here in 1920 which enabled vets to train locally for the first time. Theiler became the first dean of this faculty." (Wikipedia)

thellungiana/thellungii: for Albert Thellung (1881-1928), Swiss botanist and plant collector, of the Botany museum at the University of Zurich. (Hugh Clarke, pers. comm.)

Theodora: for Charles Theodore (Karl Theodor) , Elector and Duke of Bavaria (1724-1799). The genus was published in 1786 by German physician and botanist Friedrich Kasimir Medikus who was garrison doctor at Mannheim in the Palatinate then ruled by the Elector Karl Theodor. Theodore founded in 1763 the Academia TheodoroPalatina of Mannheim and in 1766 an associated botanic garden at Medikus’ instigation. He was also at least partially responsible for the creation of the Englischer Garten (English Garden) in the center of Munich, one of the world's largest urban public parks. (Wikipedia)

theodori-friesii: for Thore Christian Elias Fries (1886-1931), Swedish  professor of botany, Lund; botanist-collector specializing in Cliffortia; collected with his brother R.E. Fries in East Africa, 1921-22; died in Umtali during an expedition to South Africa and Zimbabwe (Rhodesia) in 1931. (Hugh Clarke, pers. comm.)

theophrasti: I'm not 100% clear on this but it seems that there was a plant that Theophrastus called althaia or marsh mallow, and the specific epithet theophrasti as applied to a taxon of genera Abutilon was carried over from previously used names such as Althaea theophrasti, and was meant to indicate that this was the species referred to by Theophrastus. Theophrastus of Eresus (c.371-288 BC) was an early Greek botanist.

theresae (Aspalathus):

theronii: for a Mr. A.S. Theron who documented the flora of his farm.

Thesium: presumably after Greek hero Thesius, son of King Aegeus. (W.P.U. Jackson)

theurkauffii: for a certain Dr. Theurkauff who collected Aizoon theurkauffii (= Mesembryanthemum cryptanthum) in 1935 in the Moroccan Sahara. (JSTOR)

thodeana/thodei: for Hans Justus Thode (1859-1932), Drakensberg plant collector, an associate of Heinrich Gustav Adolf Engler to whom he sent specimens (Elsa Pooley, JSTOR)

thollonii: for François-Romain Thollon (1855-1896), collected in Gabon, Ivory Coast, Congo and Nigeria.

thomae: for Thomas Pearson Stokoe (1868-1959), artist and plant collector, a Yorkshireman who emigrated to South Africa in 1911. Nivenia stokoei was only properly documented in 1924, after it was collected by T.P. Stokoe who collected numerous specimens in the Kogelberg, many of which were named after him, including the now extinct Mimetes stokoei. His ashes are scattered near Stokoe's Bridge in the Kogelberg Reserve. (website Cape Nature) His long career included both plant collecting and mountaineering, and he discovered many high-altitude plants.

thomassetii: Hymenophyllum thomassetii was collected by a J.F.H. Thomasset in Malawi.

thomasiae: for Vicky Thomas (fl. 2003), South African botanical artist. (Etymological Dictionary of Succulent Plant Names)

thomasii: for Harry Evan Patershall Thomas (1879-1948), British Army officer who settled in South Africa after the Boer War and collected some plants in the Orange Free State, commemorated with Sebaea thomasii. (Elsa Pooley; Gunn & Codd; Dictionary of British and Irish Botanists)

thomii: for Dr George Thom (1789-1842), a Scottish minister and missionary of the N.G. Kerk who sent botanical and geological speciments overseas to Profs. W. J Hooker and Couper in Glasgow. (Hugh Clarke, pers. comm.)

thompsoniae: for Audrey Thompson, the daughter of Sheila Thompson (fl. 1970), a grower of indigenous plants at Magoebaskloof who first collected Aloe thompsoniae. (PlantzAfrica)

thomsiana (Strychnos):

thomsonii: for Joseph Thomson (1858-1895), Scottish explorer in Africa, appointed geologist and naturalist to the Royal Geographical Society's expedition to East Central Africa. He had an amazing career as an explorer, traversing many areas through which no one had ever gone before, and he was considered as the last and one of the most successful of the great geographical pioneers in Africa.

thonningii: for Peter Thonning (1775-1848), Danish physician and botanist who was sent to Ghana to supervise plantations, lived there for four years, later his herbarium was destroyed during the Second Battle of Copenhagen in 1807 when the British shelled the city and attempted to sieze the Danish-Norwegian fleet. (Wikipedia)

Thorncroftia/thorncroftii: for George Thorncroft (1857-1934), British botanist, plant collector and merchant who emigrated to SA in 1882 and died in the Transvaal. (CRC World Dictionary of Plant Names)

thoursiana/thouarsii/thuarii: for Louis-Marie Aubert du Petit-Thouars (1758-1831), an eminent French botanist who after the French Revolution was exiled to Madagascar and nearby islands where he became interested in botany and started collecting plants.

thraskii: for someone with the surname of Thrask (fl. 1880). (Succulents.co.za, Etymological Dictionary of Succulent Plant Names)

thudichumii: for Jacques Thudichum (1893-1985), 2nd curator of the Karoo Botanic Garden (1945-1958). (Etymological Dictionary of Succulent Plant Names)

thulinii: for Mats Thulin (1948- ), Swedish botanist.

Thunbergia/thunbergiana/thunbergianus/Thunbergiella/thunbergii: for Carl Peter Thunberg (1743-1828), Swedish botanist and physician who travelled with ships of the Dutch East India Company and did extensive botanical exploration in southern Africa. He was a student of Linnaeus, a plant collector and explorer, and a professor of botany and medicine at Uppsala. He had several other genera named for him. (CRC World Dictionary of Plant Names)

thuretii: for Gustav Adolph Thuret (1817-1875), French botanist who specialized in marine algae and established a botanical garden in Antibes on the Mediterranean coast that was known throughout the scientific world.

thwaitesii: for George Henry Kendrick Thwaites (1812-1882), British botanist, died in Sri Lanka, mostly interested in algae and cryptogams.

tidmarshii: for Edwin Tidmarsh (1831-1915), British-born horticulturist, curator of the Grahamstown Botanical Garden, collected and sent many plants to Kew. (Gunn & Codd)

Tieghemia: for Philippe Édouard Léon van Tieghem (1839-1914), French botanist, professor of botany. (CRC World Dictionary of Plant Names)

Timmiella: diminutive of Timmia, named for Joachim Christian Timm (1734-1805), German botanist and bryologist.

Tinnea: for the Tinne family in Holland, specifically Harriet (Henrietta) Tinne, her sister Adrienne van Capellen and Harriet's daughter Alexandrine, who were patrons of botany in the 1800's, to commemorate a scientific expedition on the Nile in 1861 during which Harriet Tinne and her two daughters collected seed of T. aethiopica. Alexandrine was a Dutch explorer in Africa and the first European woman to attempt to cross the Sahara (PlantzAfrica, Wikipedia)

tischeri (Conophytum):

tischleri: for Georg Friedrich Leopold Tischler (1878-1955), German botanist and cytologist, traveller and plant collector.

tisserantii: for Charles Tisserant (1886-1962), French cleric, ethnologist, traveller, plant collector, botanist, and author of several works on flora and languages of the areas he visited.. (Etymological Dictionary of Grasses)

Tithonia: after Tithonius, a mythological young man who was a favorite and companion of Aurora, the goddess of dawn. Another source (Elsa Pooley) says Tithonis was another name for Aurora. (CRC World Dictionary of Plant Names)

Tittmannia: for Johann August Tittman (1774-1840), German botanist, agronomist and physician. (CRC World Dictionary of Plant Names)

Todea: for Heinrich Julius Tode (1733-1797), German clergyman, botanist and cryptogamist, and author. (CRC World Dictionary of Plant Names)

Tomasellia: for Giuseppe (Joseph) Tomaselli (1733-1818), Italian scientist and scholar, originally intended to be a priest, then studied chemistry, agriculture, geology and meteorology, became interested in botany and was associated with the Botanic Garden of Verona, wrote and published a great deal on many subjects, and researched fossil ichthylogoy. (from an Italian website about the community of Soave)

tomasi (Conophytum):

Torenia: for Rev. Olof Torén (1718-1753), Swedish clergyman, traveller, botanist and plant collector, ship's chaplain with the Swedish East India Company. (CRC World Dictionary of Plant Names)

torreana: for António Rocha da Torre (1904-1995), plant collector in Angola and Mozambique.

torresiana: for either (1) a Luis de Torres, with no further information. Thelypteris torresiana was first described from the Mariana Islands, according to Dr. John Thieret's Louisiana Fern and Fern Allies. or (2) Don José Torres, resident on Guam in 1819, when the type specimen was collected during the expedition under de Freycinet in L'Uranie, according to Flora of Australia online. Another source (The Plant World, Vol. 7) refers to him as Don Luis de Torres of Guam. It was originally named by Charles Gaudichaud Beaupré and published by Arthur Hugh Garfit Alston in 1960, and is now the taxon Macrothelypteris torresiana. This is probably another case of all of these names referring to the same person.

Tournefortia/tournefortii: for Joseph Pitton de Tournefort (1656-1708), French botanist and physician, naturalist, professor of medicine and botany. He was the first to define genus and genera. (CRC World Dictionary of Plant Names)

townsendiae (Homeria):

Tradescantia: for John Tradescant the Elder (1570/1575?-1638), British traveller and botanical collector, gardener to Charles I, also to Robert Cecil, Earl of Salisbury, George Villiers, 1st Duke of Buckingham, and Sir John Wotton. He was one of the first Western European botanists to visit Russia, and also visited the Levant, Algiers and France; AND for his son John Tradescant the Younger (1608-1662), naturalist and botanist, traveller, and plant collector in Virginia, succeeded his father as gardener to King Charles I and Queen Henrietta Maria, and author of Musaeum Tradescantianum, a book about his father's celebrated collection of rare and unusual objects of natural history and ethnography that became the first museum open to the public in England. They were both buried in the churchyard of St-Mary-at-Lambeth, and the tomb of The Bounty's Captain Bligh is nearby. There seems to be some dispute about which of the Tradescants this name honors. The CRC World Dictionary of Plant Names says that it is for both Tradescants, and clearly only the Younger actually went to Virginia where the plant was originally found. However, David Hollombe has told me that Linnaeus took the name Tradescantia from Ruppius' Flora Jenensis (1718) in which he stated that it was a plant described by the great English herbalist John Parkinson, who refers in his Paradisi in sole paradisus terrestris (1629, when John Tradescant the Younger was only 21) to the fact that knowledge of the spider-wort of Virginia was due to the John Tradescant who had been in the employ of the Earl of Salisbury, Lord Wotton, and the Duke of Buckingham, which would be the Elder.

Tragia: for Hieronymus Bock (latinized name Hieronymus Tragus) (1498-1554), German botanist and physician, teacher, herbalist author, Lutheran priest who began the transition from medieval botany to the modern scientific worldview by arranging plants by their relation or resemblance. The grass genus Tragus was also named for him. (CRC World Dictionary of Plant Names)

trauseldii: for William Trauseld (1911-1989), photographer and amateur botanist, author of Wild Flowers of the Natal Drakensberg, and game ranger with Natal Parks. (Elsa Pooley)

travisiana: for William Gladstone Travis (1877-1958), British botanist and lichenologist. He was a patent agent and author of Flora of South Lancashire.

Treichelia: for Alexander Johann August Treichel (1837-1901), German botanist. (CRC World Dictionary of Plant Names)

treubii: for Melchior Treub (1851-1910), Dutch botanist who spent many years in the Dutch East Indies, recognized for his work on tropical flora of Java and for the organization of the Bogor Botanical Garden.

tribblei: for Derek V. Tribble (1952- ), British software engineer and succulent plant enthusiast, co-author of The Adromischus Handbook, member of the British Cactus and Succulent Society and former chairman of the Haworthia Society, has made fifteen trips to SA to photograph succulents in the field. He was the discoverer of Tylecodon tribblei.

triebeliae: possibly for Dagmar Triebel (1957- ), German lichenologist at Munich.

triebneri/triebneriana: for Wilhelm Triebner (1883-1957), plant collector, German horticulturist who went to what is now Namibia in 1904, stayed as a succulent gardener and farmer, and established a succulent plant nursery near Windhoek. (Etymological Dictionary of Succulent Plant Names)

Trieenea: named for Elsie Elizabeth Esterhuysen (1912- ), botanical collector and botanist at the Bolus Herbarium at the University of Cape Town, according to CRC World Dictionary of Plant Names. At least one species of this genus was named elsiae for its collector, E.E. Esterhuysen, and according to Terry Trinder-Smith in the The Levyns Guide to the Plant Genera of the Southwestern Cape, Contributions from the Bolus Herbarium No 21, and the protologue in Notes Roy. Bot. Gard. Edinb. (45: 489, 1989), the generic epithet has three 'e's for the initials of E.E. Esterhuysen who played a large role in the knowledge of, and description of, the genus. The genus was named in 1989 by Olive Mary Hilliard. (CRC World Dictionary of Plant Names)

trinkleriana: possibly for Emil Trinkler (1896-1931), German geographer and explorer who died in a motor accident at the age of 35..

Tritonia: after Triton, in mythology the son of Poseidon and Amphitrite. (CRC World Dictionary of Plant Names)

Triumfetta: for Giovanni Battista Trionfetti (1658-1708), Italian botanist. (CRC World Dictionary of Plant Names)

trollii: for Prof. Carl (Karl) Troll (1899-1975), German geographer and botanist of Berlin who was commem-
orated with Commiphora trollii. He was a professor of geography at Berlin and then at Bonn, used aerial photos in his researches, coined the term 'landscape ecology,' was president of the International Geographical Union and travelled extensively in northern Chile, Bolivia, Peru, Ecuador, Colombia, and Panama, East and South Africa, Ethiopia and Mexico. He was the brother of botanist Wilhelm Julius Georg Hubertus Troll (1897-
1978). (David Hollombe, pers. comm.)

trothae/trothai: for Lothar von Trotha (1848-1920), German soldier rising to the rank of Lt. Gen. in German South-West Africa (Namibia), responsible for the massacres of Herero and Nama peoples there during the war, for which the German government later apologized. He collected plants there and in Tanzania. He was com-
memorated with the former Zygophyllum trothai, which is now Z. rigidum, and the former Oldenlandia trothae, now Kohautia subverticillata. There was also a Hellmuth von Trotha who collected plants in Tanza-
nia but I have no idea whether they were related, and I'm not sure whether the other taxa that formerly had trothae as the specific epithet such as Lycium trothae and Freyliniopsis trothae were named for either of these individuals. (Gunn & Codd)

truteri: for J. Truter (fl. 1961), a farmer in Brakfontein, Eastern Cape. (Etymological Dictionary of Succulent Plant Names)

tuckii: for William Tuck 1824-1912), horticultural collector who introduced the navel orange to South Africa. (Elsa Pooley)

tugwelliae: for Mrs. Anna Marie Krige Tugwell (1876-1966), University lecturer at South African College, plant collector in South Africa and old friend of Louisa Bolus. (Etymological Dictionary of Succulent Plant Names)

Tulbaghia: for Ryk Tulbagh (1699-1771), Governor of the Cape Colony from 1751 to 1771, with whom Linnaeus corresponded. (CRC World Dictionary of Plant Names)

turczaninowii: for Porphir Kiril Nikolai Stepanovitch Turczaninow (1796-1863), Russian botanist.

Turnera: for Rev. William Turner (c.1508-1568), British botanist and physician, herbalist, naturalist and zoologist, clergyman and traveler. (CRC World Dictionary of Plant Names)

turneri: for Dawson Turner (1775-1858) whose area of interest is recorded by IPNI as mycology, bryophytes, algae and spermatophytes, and who collected the type specimen of Toninia turneri, now synonymized to T. aromatica, on the ruined walls of Trigby church near Yarmouth (English Botany, Vol. 19, by Sir James Edward Smith, James Sowerby, and George Shaw; David Hollombe, pers. comm.)

turneriana: for Mr. V.A. Turner who owned the farm named Varsrivier in Van Rhynsdorp, where the holotype of Antimima turneriana was collected by Philip Albert Brand van Breda in 1963. (Etymological Dictionary of Succulent Plant Names)

Turraea: possibly for Antonio Turra (1730-1796), Italian botanist and physician, minerologist, author of Istoria del arbore della China. However the Standard Cyclopedia of Horticulture by L.H. Bailey (1917) says it's for Giorgio della Torre or Turra (1607-1688), physician and professor of botany at Padua, and this is repeated by Thomas H. Everett's Encyclopedia of Horticulture (1982) and other sources. Apparently Linnaeus who published the name did not specify who it commemorated. (CRC World Dictionary of Plant Names which says: "Origin not very clear.")

turrillii: for William Bertram Turrill (1890-1961), British botanist who worked at Kew (eventually made keeper of the herbarium and library), author of The Plant Life of the Balkan Peninsula (1929), editor Botanical Magazine, President of the British Ecological Society.

tyrrhea (Parmelia):

Tysonia/tysoniana/tysonianum/tysonii: for William Tyson (1851-1920), Jamaican-born South African botanist, plant collector, teacher and Fellow of the Linnean Society. He started studying medicine but had to give it up because of crippling arthritis in his hands. He worked for the Agricultural Department as librarian and sub-editor of the Agricultural Journal. He made a collection of marine algae which was donated to the Bolus Herbarium.(CRC World Dictionary of Plant Names, Gunn & Codd, Etymological Dictionary of Grasses)

uhligii: possibly for Viktor Karl Uhlig (1857-1911), a German geologist at the University of Vienna who collected in Tanzania.

uhrii (Erica):

ulbrichiana: possibly for Oskar Eberhard Ulbrich, German professor, botanist and mycologist. There is a discrepancy regarding his dates, the Harvard University Herbarium website gives 1854-1915, whereas the JSTOR plant name authors list, the International Plant Names Index and the CRC World Dictionary of Plant Names give 1879-1952. He was also honored by the genus Ulbrichia.

upingtoniae (Oligomeris):

urbanskyana: for Josef Urbansky (1877-?), a seaman of the German South Polar Expedition of 1901-1903, commemorated with Porpidia urbanskaya, published by South African lichenologist Franklin Andrej Brusse.
(David Hollombe, pers. comm.)

Ursinia: for Johann Heinrich Ursinus of Regensburg (1608-1666), German cleric and botanist and author of Arboretum Biblicum. (Elsa Pooley; CRC World Dictionary of Plant Names)

urvillei: for Jules Sébastien César Dumont d’Urville (1790-1842), French naval officer, explorer and botanist who commanded the Astrolabe on a three-year circumnavigation of the world beginning in 1826 which brought back large collections of zoological, botanical and mineralogical reports. This was his second circumnavigation, the first having been aboard the hydrographic and botanical research vessel Coquille departing from France in 1822. He invented the terms Micronesia and Melanesia to distinguish those island groups from Polynesia. He later made a second equally significant voyage also on the Astrolabe including Antarctica, and eventually became President of the French Geographical Society. He discovered the Venus de Milo statue on the island of Milos in the Mediterranean, and was responsible for its purchase by the French government. He and his whole family died in a train disaster near Versailles. (Hugh Clarke, pers. comm., Wikipedia)

uysiae: named by Louisa Bolus in 1931 for a Mrs. Uys, about whom I have no information, but who with a Mr. Buhr gave her a Gladiolus plant from the Nieuwoudtville area of the Calvinia District

uysii: for Dr. Peter Uys, a doctor of medicine and an anesthetist, who collected Erica uysii in Bredasdorp, South Africa, in 1972. Thanks to Alice Notten at Kirstenbosch for this and the previous entry.

Vahlia/vahlii: for Martin Henrichsen Vahl (1749-1804), Norwegian-born Danish botanist, traveler, pupil of Linnaeus, professor of botany. (CRC World Dictionary of Plant Names)

vahrmeijeri: for Johannes Vahrmeijer (1942- ), Dutch-born economic botanist who settled in South Africa, and collected there and in Botswana, Mozambique, and Namibia.

vaillantii: for Sébastien Vaillant (1669-1722), French botanist and author of Sermo de structura florum (1718), who studied botany at the Jardin des Plantes under Joseph Pitton de Tournefort. (Hugh Clarke, pers. comm.) He was apparently the first French botanist to argue for the existence of sexuality in plants.

vainioi: possibly for Edvard (Edward) August Vainio (1853-1929), Finnish mycologist and lichenologist, professor and director of the botanical gardens at the university of Turku, Finland, made collecting trips to Lapland, Brazil and the Urals.

valeriae: for Valerie Fay Anderson, a botanical artist.

Vallisneria: for Antonio Vallisnieri (Vallisneri) (1661-1730), Italian physician and botanist, naturalist, biologist, professor of medicine at the University of Padua, member of the Royal Society of London. (CRC World Dictionary of Plant Names)

Vallota: for Antoine Vallot (1594-1671), French botanist and physician, personal physician to King Louis XIV of France and Director of Jardin du Roidirector of Jardin du Roi. (CRC World Dictionary of Plant Names)

vanbalenii: for Jan C. van Balen, the former Director of the Park Department in Johannesburg, SA, who first collected this species.

vanbredae/vanbredai: for Philip Albert Brand van Breda (1922- ), officer in charge of the Veld Reserve in Worcester, Western Cape. (Etymological Dictionary of Succulent Plant Names)

vandeleurii: for Lt. Col. Crofton Bury Vandeleur (1867-1947), served in the Anglo-Boer War and WWI, collected in the Transvaal.

vandenberghenii: possibly for Constant Vanden Berghen (1914-2004), Belgian professor of botany at the Catholic University of Lovain, co-author with Adrien Manga of Un Introduction á un Voyage en Casamance: Enampor, Un Village de Riziculteurs en Casamance, Au Sénégal (1999), a detailed description of the soil and vegetation of the Enampor region of southern Senegal, and of the first three editions of New Flora of Belgium and the Grand Duchy of Luxembourg, and author of the first volume of Flora of Senegal and a great many scientific articles. (David Hollombe, pers. comm.)

Vandenboschia: for Roelof Benjamin van den Bosch (1810-1862), Dutch physician and botanist, author of Hymenophyllaceae javanicae. (CRC World Dictionary of Plant Names)

vanderbergiae: for Miss M. van der Berg (fl. 1935). (Etymological Dictionary of Succulent Plant Names)

vanderbylii: probably for Paul Andries van der Byl (Bijl) (1888-1939), a collector of succulents. He was on the staff of the Division of Plant Pathology in Pretoria, then in 1918 he was transferred to Durban as officer in charge of the Botanic Station and Natal Herbarium, to work on diseases of sugar-cane and other tropical crops. In 1921 he was appointed Professor of Phytopathology in the newly formed Agricultural Faculty of Stellenbosch University, the first professor in this subject in South Africa, and built his department up from scratch to a leading place for teaching and research in phytopathology and mycology. He was the first professor of plant pathology in South Africa, and his department was also the first department of plant pathology in the British Commonwealth. In 1928 he became principal of the Stellenbosch Elsenburg Agricultural College, a post he held until his death. During his career he established one of the most extensive lichen collections ever obtained in South Africa, and after his death, the P.A. Van Der Bijl Herbarium was merged with the National Collection of Fungi (PREM). In 1928 he also published the first South African book dealing with diseases of plants. (South African Society of Plant Pathology; CRC World Dictionary of Plant Names) See also bylei/bylii.

vanderietiae: for Mrs. M. Van de Riet of Grahamstown. (David Hollombe, pers. comm.)

vandermerwei: for (1) Frederick Ziervogel Van der Merwe (1894-1968), South African medical inspector of schools in the Transvaal and Natal, plant collector particularly interested in Aloe and Scilla, also a collector of sheet music and compiler of a glossary of Afrikaans medical terms, and author of Mediese Woordeboek (1935) with J. Louw and Suid-Afrikaanse Musiekbibliografie (1958) (Euphorbia, Aloe, Eucomis) (Gunn & Codd) or (2) N.J.S. Van der Merwe (fl. 1929) (Gladiolus, Drosanthemum) (Etymological Dictionary of Succulent Plant Names). The taxon Delosperma vandermerwei is a bit of a mystery since according to JSTOR specimen records it was collected by both N. Van der Merwe in 1929 and F.Z. Van der Merwe in 1941 so I don't know which one it's named for..

vanderspuyiae: for Una van der Spuy, South African gardening writer, author of Wild Flowers of South Africa for the Garden and South African Shrubs and Trees for the Garden and other books.

vanderwaltii: for Johannus Jacobus Adriaan van der Walt (1938-2003), professor at the University of Stellenbosch and head of the university botanical garden. He was a co-author of the three volume Pelargoniums of South Africa.

Vanheerdia/vanheerdei: for Pieter van Heerde (1893-1979), South African teacher and school principal. (JSTOR)

vanheurckii: for Henri Ferdinand Van Heurck (1838-1909), Dutch botanist and plant name author.

vanjaarsveldii: for Ernst Jacobus van Jaarsveld (1953- ), South African horticulturist and plant collector, worked at Lowveld Botanic Garden, Nelspruit, and at Kirstenbosch. (Gunn & Codd)

vanniekerkiae (Ruschia):

vanputtenii: for Joost van Putten (fl. 1929), a farmer in South Africa.

vanrensburgii: for a Mr. A.D. van Rensburg (fl. 1953). (Etymological Dictionary of Succulent Plant Names)

vanrooyenii: for Mr. Pieter van Rooyen of Greytown, KwaZulu-Natal, well-known South African gardener who according to the authors, Gideon Francois Smith and Neil R. Crouch, "...stimulated and facilitated further taxonomic studies of this unique maculate aloe." He and his son Francois are Clivia experts and have an ex-
tensive collection. The species in question here is Aloe vanrooyenii. (David Hollombe, pers. comm.)

vansonii: possibly for George Van Son (1898-1967), who collected in Botswana, South Africa and Zimbabwe.

vanthielii: for Jacques van Thiel (1941- ), Dutch general practitioner and educationalist now retired, Depart-ment of General Practice at Maastricht University, enthusiastic Anacampseros/Avonia specialist and noted explorer of these plants in Southern Africa. He is commemorated with Anacampseros vanthielii. (Jacques van Thiel, pers. comm.)

Vanwykia: for Pieter van Wyck (1931- ), South African botanist, ecologist, biologist, plant collector, head of the Department of Research and Communication of the National Parks Board of South Africa. (CRC World Dictionary of Plant Names)

vanwykiana/vanwykii: for Abraham (Braam) Erasmus van Wyk (1952- ), South African plant taxonomist, Curator of HGWJ Schweikerdt Herbarium, University of Pretoria, author of Field Guide to Wild Flowers of the Highveld, Field Guide to Trees of Southern Africa, A Photographic Guide to Wild Flowers of South Africa and How To Identify Trees in Southern Africa, and co-author with Gideon Smith of Aloes of Southern Africa. His floristic work has mainly been focused on KwaZulu-Natal, Pondoland, Maputaland (including southern Mozambique) and the northeastern Drakensberg Escarpment, and he is commemorated with Pavetta vanwykiana and Canthium vanwykii. (David Hollombe, pers. comm.)

Vanzijlia/vanzijliae: for South African plant collector Mrs. Dorothy Constantia van Zijl (1886-1938). (CRC World Dictionary of Plant Names)

vanzyliae (Romulea):

vanzylii: for Gert H. van Zyl (fl. 1930-1932), postmaster at Pofadder in the Northern Cape. (Etymological Dictionary of Succulent Plant Names)

varderi: for an R. Varder, who collected Erica varderi in South Africa in 1916.

vasselotii: probably for Médéric de Vasselot de Regnier (1837-1912), forest conservator.

vaupeliana: possibly for Friedrich Karl Johann Vaupel (1876-1927), German botanist and explorer, collected cacti in Mexico and Samoa.

Vellozia: for Joaquim Velloso de Miranda (1733-1815), Portuguese botanist, plant collector in Brazil. (CRC World Dictionary of Plant Names)

Veltheimia: for August Ferdinand Graf von Veltheim (1741-1801), a German patron of botany. (CRC World Dictionary of Plant Names)

ventenati: for Étienne Pierre Ventenat (1757-1808), French botanist, or his brother Louis Ventenat (1765-1794), Catholic priest, naturalist and botanical collector, for whom the species Peperomia ventenatii was named by Dutch botanist Friedrich Anton Wilhelm Miguel.

venteri: for (1) Dr. Stephanus (Fanie) Venter (1953- ), South African botanist, former curator of the herbarium at the University of the North (now called University of Limpopo), author of Making the Most of Indigenous Trees with Julye-Ann Venter and Trees of Botswana with Moffat P. Setshogo, director of his own botanical and environmental consultancy firm, has collected in all the countries of southern Africa and elsewhere (Euphor-
bia, Kleinia, Plectranthus) (Pers. comm.), or (2) J.D. (Kobus?) Venter (fl. 1997), amateur botanist and collector, Haworthia enthusiast, described several species of Haworthias with Steven A. Hammer (Haworthia).

venusta: for Grace Violet Britten (1904-1987), botanical assistant at the Albany Museum Herbarium at Gra-
hamstown, and enthusiastic cultivator of indigenous plants, especially succulents. She was a cousin of Lilian Louisa Britten (1886-1952), and is commemorated with Haworthia venusta in addition to species with the epithets britteniae and gratiae. 'Venusta' is Latin for 'beautiful' or 'graceful.' (Botanical Exploration of Sou-
thern Africa, Etymological Dictionary of Succulent Plant Names; Women and Cacti)

verae: for a Vera Haehnlein, who collected Ornithogalum verae at age 17. This taxon was originally described by the Muller-Doblies in 1996 from a discovery made near Sutherland on the Roggeveld Escarpment in the western Karoo. (David Hollombe, pers. comm.)

verdickii: for Edgard (Antoine Auguste) Verdick (fl. 1899-1903), Belgian-born plant collector, author of Les Premiers jours au Katanga.

verdoornia: possibly for Frans Verdoorn (1906-1984), botanist and biohistorian, born in Amsterdam, Director of the Biohistorical Institute at the University of Utrecht, editor of Chronica Botanica.

verdoorniae: for Dr. Inez Clare Verdoorn (1896-1989), South African botanist at the Botanical Research Institute, Pretoria. (Etymological Dictionary of Succulent Plant Names).

verekeri: for Mr. Louis S.A. Vereker (fl. 1937-1942), succulent plant collector of Zimbabwe. (Etymological Dictionary of Succulent Plant Names)

vermeuleniae (Mesembryanthemum):

vermoesenii: for Francois (Frans) Marie Camille Vermoesen (1882-1922), Belgian lichenologist?

vernayi: for Arthur Stannard Vernay (1906-1978?), British-born antiques collector who came to the United States and created a business selling antiques and providing restoration and interior design services, including the installation of period paneled rooms. He had an interest in collecting animal specimens for the American Museum of Natural History and went on several collecting expeditions to India, Tibet, Siam, the Malay Peninsula, and Burma and led an expedition to Nyasaland in 1946 on behalf of the American Museum of Natural History, the New York Botanical Garden, and the Kaffrarian Museum of South Africa, during which many hundreds of botanical and zoological specimens were collected.

Vernonia: for William Vernon (1666/1667-1711), British botanist and bryologist who collected plants in Maryland in the late 1600's. (PlantzAfrica, CRC World Dictionary of Plant Names)

Veronica: for Saint Veronica, one of the women who accompanied Christ to Calvary, and offered him a towel on which he left an imprint of his face. (CRC World Dictionary of Plant Names)

verreauxii: for Jules Pierre Verreaux (1807-1873), French botanist and ornithologist, of the French natural history museum. He visited South Africa where he helped Andrew Smith found the South African Museum in Cape Town. (Gunn & Codd)

versfeldii: there is a JSTOR specimen record for Watsonia versfeldii having been collected by a W. Versfeld in South Africa in 1915, so I assume this is the person it is named for, but I have no more information about him.

veseyfitzgeraldii: for Leslie Desmond Edward Foster Vesey-Fitzgerald (1910-1974), Irish-born entomologist, ornithologist, conservationist, and plant collector, ecologist and conservationist in the National parks of Tanzania.

Vieusseuxia: for M. Vieusseux, Swiss botanist and physician.

Vigna: for Domenico Vigna (?-1647), Italian botanist, professor of botany and Director of the Botanical Garden of Pisa. (CRC World Dictionary of Plant Names)

viguieri: for either (1) Louis Guillaume Alexandre Viguier (1790-1867), a French physician and botanist, or, more likely, (2) René Viguier (1880-1931), French botanist and paleontologist specializing in mycology, professor at the University of Caen, interested in plants of Madagascar, and definitely honored by the name Euphorbia viguieri.

Villarsia: for Dominique Villars (1745-1814), French botanist and physician, professor of botany and medicine at the University of Strasbourg. (CRC World Dictionary of Plant Names)

villaumei: probably for Rév Père Edouard S.J. Villaume (1849-1920) who collected plants in Madagascar.

villetiae: for Mrs. C.T. Villet, presumably the wife of the Dr. C.T. Villet referred to in the next entry.

villetii: named for Dr. A.C.T. Villet (fl. 1936-1956), a collector of succulents in South Africa. The isotype for this species was collected in 1941 and the holotype in 1936 (Etymological Dictionary of Succulent Plant Names) There is confusion regarding this name. The JSTOR website lists an A.C.J. Villet (fl. 1924-1937), plant collector in South Africa. The previous entry (from Women and Cacti) refers to a Mrs. C.T Villet who Eggli & Newton have as the wife of A.C.T. Villet. Gunn & Codd refer to Dr. C.T. Villet after whom Caralluma villetii is named. And Dr. C.T. Villet's great-grandfather was Carolus Johannes Villet (1817-1877), flower painter and dealer in natural history artifacts, and there are JSTOR specimen records (date unspecified) of Lithops villetii being collected by a C.J. Villet, although another source says this taxon was collected by Dr. C.T. Villet in 1938 and named for him. So the bottom line is that this name probably is for Dr. C.T. Villet, succulent plant collector in Worcester.

villiersii: for Mr. H.L. de Villiers (fl. 1932-1959). (Etymological Dictionary of Succulent Plant Names)

vincentii: for Vincent de Vries who was a Haworthia collector in South Africa.

Virgilia: for Virgil, the greatest of Roman poets. (PlantzAfrica)

visseri: for (1) Mr. Floors Visser, who collected the species in 1947 and through his insight and actions, saved Freylinia visseri from possible extinction (PlantzAfrica), or (2) Johannes Hendrik Visser, South African plant physiologist, author of South African Parasitic Flowering Plants (Cytinus). (IPNI)

Vlokia/vlokii: for Jan H.J. Vlok (1957- ), active plant collector and Environmental Advisor to the Cape Department of Nature Conservation. He collected a specimen of Freylinia vlokii on the Rooiberg together with Mr. Mike Viviers. (PlantzAfrica)

Vogelia: sources say this was named for the German botanist and plant collector Julius Rudolph Theodor Vogel (1812-1841), however according to David Hollombe's researches, the genus was published in 1792, before J.R.T. Vogel was born. Johann Friedrich Gmelin published the name Vogelia in a different family the year prior in Systema Naturae ed. 13. A German physician and naturalist whose 'Practisches mineralsystem' is heavily cited in Volume 3 (Regnum Lapideum) of Systema Naturae was named Rudolph Augustin Vogel (1724-1774), and this is one possibility for the derivation of the name. Another is Benedict Christian Vogel (1745-1825), a professor of botany at Altdorf. For the time being, this remains an open question.

vogelii: for Julius Rudolph Theodor Vogel (1812-1841), German traveller, explorer, botanist and plant collector, co-director of the Botanical Gardens of Bonn, brother of explorer and plant collector Eduard Vogel.

vogelpoelii: for Dr. Louis Vogelpoel (1922-2005), South African physician, cardiologist and horticultural scholar and researcher, considered an expert on Ericas and South African orchids especially genus Disa, collected Erica vogelpoelii in the Bredasdorp mountains and also is honored with the name Disa vogelpoelii.

vogtsiae: for Marie Murray Vogts (née Neethling) (1908-1998), a well-known and much respected South African protea specialist, author of the first popular book on the Proteaceae of South Africa. She was "Senior Professional Officer in the Department of Agriculture Technical Services in 1960, first in Pretoria under the Botanical Research Institute and then from 1965 at Betty's Bay under the Fruit and Food Technology Research Institute, until her retirement in 1975." (Protea Atlas Project)

vogtsii: for Mr. Lewis R. Vogts (fl. 1930), South African administrator and succulent plant horticulturist (Etymological Dictionary of Succulent Plant Names).

volckameri: for Johann Georg Volckamer (1662-1744), German physician and botanist..

volkartii: for George Volkart from Switzerland, friend of botanist John Gossweiler.

volkensii: for Georg Ludwig August Volkens (1855-1917), German botanist, traveller in Egypt and Arabia, collaborator of A. Engler, collected in Mozambique, South Africa and elsewhere. (Etymological Dictionary of Grasses)

Volkiella/volkii: for Otto Heinrich Volk (1903-2000), a professor who taught botany to Johan Wilhelm Heinrich Giess in the internment camp during WWII. He was a German/South African pharmacist who lived in Namibia during the war. (JSTOR; Gunn & Codd)

volkmanniae: for Miss Margareta Volkmann (fl. 1928).

vorsteri: named in 1994 by Karen Louise Wilson. Gunn & Codd include two Vorsters, (1) South African botanist Pieter Johannes Vorster (1945- ), on staff at the National Herbarium, Pretoria, worked on nomenclature of SA Poaceae, and a plant name author, and (2) Thomas Butler Vorster (1931- ), a South African cytogeneticist, on staff at Botanical Research Institute 1971-1979. Of the two, P.J. Vorster seems the more likely.

vosseleri: for Dr. Julius Vosseler (1861-1933), German zoologist and entomologist, Director of the Hamburg Zoo.

Vossia: for Johann Heinrich Voss (1751-1826), German poet known for translations of Homer. The genus was published in 1836 by Nathaniel Wallich and William Griffith. (Etymological Dictionary of Grasses)

vossii: for Mr. Harold Voss (fl. 1936). (Etymological Dictionary of Succulent Plant Names)

Wachendorfia: for Evert Jacob van Wachendorff (1702-1758), a Dutch professor of medicine, botany and chemistry at Utrecht University. and one of the first directors of the Botanic Gardens of Utrecht. (PlantzAfrica)

wachteri: for Willem Hendrick Wachter (1882-1946), Dutch botanist and bryologist. (Etymological Dictionary of Grasses)

wageneri: for G.E.H. Wagener, who collected the type specimen in the Matjiesrivier area in the Cederberg. (PlantzAfrica)

wageri: for (1) Horace Athelstan Wager (1876-1951), British-born South African botanist who came to SA in 1903, professor of botany and zoology at Transvaal University College (now Pretoria University), main interest was in mosses and ferns (Fabronia, Fissidens, Oligotrichum), or (2) his son, Vincent Athelstan Wager (1904- ), South African plant pathologist, founder of the Natal Wildlife Society, author of Vegetable Diseases in South Africa, Diseases and Pests of Garden Flowers, and All About Tomatoes, also an authority on South African frogs. There is an JSTOR specimen record of Sphaerothylax wageri (= S. algiformis) being collected by V.A. Wager in 1934 and it was published in 1938 so this one commemorates the son. The other SA taxa that bear this epithet were all published when the son was too young and so honor the father.

wahlbergii: for Johan August Wahlberg (1810-1856), Swedish naturalist and explorer, studied forestry and agronomy, joined the Office of Land Survey and was appointed an engineer in 1836, becoming an instructor at the Land Survey College. He travelled in southern Africa between 1838 and 1856, sending thousands of natural history specimens back to Sweden. He was exploring the headwaters of the Limpopo River when he was killed by a wounded elephant. (Wikipedia)

Wahlenbergia: for George Wahlenberg of Uppsala (1780-1851), Swedish maturalist. Wahlenberg matriculated at Uppsala University in 1792, received his doctorate in medicine in 1806, was appointed botanices demon-
strator in 1814, and professor of medicine and botany in 1829, succeeding Carl Peter Thunberg. He was the last holder of the undivided chair that in the previous century had been held by Linnaeus. Wahlenberg made his main work in the field of plant geography and published, among other things the Flora lapponica (1812) and other works on the plant world of northernmost Sweden. (CRC World Dictionary of Plant Names) There is also a genus Wahlenbergia in the Rubiaceae family named for Wahlenberg but it does not appear in South Africa.
(CRC World Dictionary of Plant Names)

waillyi: presumably for an M. de Wailly (fl. 1936-1937) who collected it in Mali and the Sudan.

wainii: for Dr. Edvard August Wainio/Vainio (1853-1929), Finnish lichenologist, author of Lichenes insularum Philippinarum in 4 vol. (1909-1923) and co-author of Contributions to the Knowledge of the Vegetation of the Canary Islands. (David Hollombe, pers. comm.)

wakefieldii: for Rev. Thomas Wakefield (1836-1901), plant collector.

Walafrida: for Walahfrid Strabo (c.809-849), German monk, poet, politician and theologian, author of Hortulus. (CRC World Dictionary of Plant Names)

walgateae: for Marion M. Walgate (later Mrs. Macnae) (1914- ), English-born botanist who emigrated to South Africa. (Etymological Dictionary of Succulent Plant Names)

walkeri: possibly for George Arnott Walker-Arnott (1799-1868), Scottish botanist, professor of botany at Glasgow University.

wallacei: Schizoglossum wallacei was collected by someone named Wallace in 1892 in Namibia. The Journal of Botany, British and Foreign, Vol. 33, has a reference to a Rev. Wallace in connection with Schizoglossum.

walleri/Walleria/walleriana: for Rev. Horace Waller (1833-1896), British botanist, plant collector and missionary in Central Africa. (CRC World Dictionary of Plant Names)

walliana: for Eric Torsten Selim Wall (1871-1959), plant collector in South Africa, Rhodesia and elsewhere.
Dimorphotheca walliana was collected by him at Gordons Bay, South Africa, in 1938.

wallichii: for Dr. Nathaniel Wallich (born Nathan ben Wulff) (1786-1854), Danish physician and botanist who made extensive collections of plants from Asia and South Africa, professor of botany at Calcutta Medical College, friend of Sir Stamford Raffles and travelled to Singapore at his bequest to design the Botanical Gardens, although it is unclear how much he actually did there. A major work of his was Plantae Asiaticae Rariores (3 vols., 1830-1832) and he had many taxa named for him.

Wallinia: for Georg/Jöran Wallin the Younger (1686-1760), librarian at the University Library at Uppsala and professor of theology there, Bishop of Göteborg.

walshii: for Mr. L.A. Walsh who first collected Agapanthus walshii in 1918. (JSTOR)

walteri/walteriana/walterorum: for Heinrich (Karl) Walter (1898-1989), German-Russian geobotanist, soil scientist, traveller and plant collector who collected Colchicum walteri in Namibia in 1953. He was a lecturer and then Associate Professor of Botany at the University of Heidelberg, later Director of the Botanical Institute and Garden of the Institute of Technology (now University) in Stuttgart. He was the author of The Basics of Plant Life and Its Significance for Humans. He and his wife Erna Walter (née Schenck) (1893-?), daughter of botanist Heinrich Schenck, collected jointly on trips to eastern and southern Africa, mainly what is now Namibia, and were honored jointly with the name Euryops walterorum. Gunn & Codd say that Heinrich was commemorated with Acacia walteri (now A. nebrownii). The taxa Aristida walteri (now Stipagrostis fastigiata), Mollugo walteri, Xanthoparmelia walteri, and Crinum walteri (now C. minimum) were collected by both, but since they did collect together, it is difficult to say whether it was intended that these and other taxa such as Eragrostis walteri and Portulaca walteriana (now P. quadrifida) should honor one or the other or both. Heinrich Walter also travelled in Anatolia, Australia, New Zealand and Argentina. (Gunn & Codd; Etymological Dictionary of Grasses)

waltersii: for Ian Basil Walters (1917-1983), dental surgeon, bomber pilot, flight instructor, and plant collector.

Waltheria: for Augustin Friedrich Walther (1688-1746), German botanist and physician, professor of pathology and author. (CRC World Dictionary of Plant Names)

waltoniae: for a Miss A. Walton (fl. 1923) who collected Orthopterum waltoniae near Grahamstown. (Etymological Dictionary of Succulent Plant Names, JSTOR)

Warburgia: for Dr. Otto Warburg (1859-1938), who was born in Hamburg. He lectured in botany at the University in Berlin and was also the author of numerous botanical papers. (PlantzAfrica)

Wardia: for Nathaniel Bagshaw Ward (1791-1868), British-born physician interested in botany and entomology, created the first 'terrarium,' a sealed glass container for growing ferns and other plants without exposure to ambient air which came to be known as Wardian Cases. They were used extensively for transport of plants back to England. One of the people who used them most successfully was Joseph Dalton Hooker. The orchid craze of the Victorian age was made possible by these terraria, rubber trees were shipped from Brazil to Malaya and Sri Lanka to create the British colonial rubber industry, the Chinese banana was introduced into Fiji in Wardian Cases, and 20,000 tea plants were shipped from Shanghai to the Assam region of India where much of today's finests teas are grown. (PlantExplorers.com) He also used these cases for rearing butterflies, worked on microscopy, and helped to develop the Chelsea Physic Garden. He was a fellow of the Linnean Society and a fellow of the Royal Society.

wardii: for Cecil James Ward (1926-1959), South African ecologist , author of The Plant Ecology of the Isipingo Beach Area, Natal, South Africa.

warmingii/warmingiana: probably for Johannes Eugenius (Eugen) Bülow Warming (1841-1924), Danish botanist and a main founding figure of the scientific discipline of ecology, wrote the first textbook (1895) on plant ecology, taught the first university course in ecology and gave the concept its meaning and content. He was a professor at the Univ. of Copenhagen (1885–1911) and wrote a pioneer work in his field, Plantesamfund (1895), which, rewritten and enlarged, appeared in English as Oecology of Plants (1909). He also wrote A Handbook of Systematic Botany and many textbooks on botany and plant geography which were translated into several languages and were immensely influential at their time and later. He was a major figure in the science of botany. (JSTOR, Wikipedia, Infoplease)

Warneckea/warneckei: for Otto Warnecke (1872/1873-?), German plant collector, gardener in Togo. (CRC World Dictionary of Plant Names)

warnstorfii: for either Carl Friedrich Warnstorf (1837-1921), German bryologist, or his son Johannes (1866-?).

watermeyeri: for a certain Mr. E.B. Watermeyer (fl. 1924-1931), collector of succulents in the Van Rhynsdorp area. (Etymological Dictionary of Succulent Plant Names)

watkinsonii: for a Mr. H. Watkinson of the Transvaal Forest Department. He is commemorated with the former taxon Eulophia watkinsonii, published in 1913 by British botanist Robert Allen Rolfe, and now synonymized to E. hians var. inaequalis. Information about him is confusing because according to David Hollombe "the pub-lished letter concerning his collections is attributed to J. S. Watkinson, and Transvaal Dept. of Agriculture publi-tions list him as T. S. Watkinson. He was Thomas Samuel Watkinson, who died at Cairn Siding near Barberton in 1917 (he may have been born in England in 1874)." (David Hollombe, pers. comm.)

Watsonia/watsonius: named by Philip Miller of Chelsea for his friend Sir William Watson (1715–1787), a London physician apothecary, botanist and naturalist, fellow of the Royal Society. (CRC World Dictionary of Plant Names)

wattii: for Dr. James Shaw Watt (1906-2002), Scots-born plant collector, moved to South Africa, then Namibia. He was Director of Agriculture in the SWA government until his retirement in 1969.

wawreana: for Heinrich Ritter Wawra von Fernsee (1831-1887), German/Austrian botanist, naturalist and ship's surgeon who published a series of botanical papers from 1872 to 1875 as Beitriige zur Flora der hawai'schen Inseln about his collections in Hawaii. Wawra collected on several around-the-world expeditions as well as in Brazil accompanying European royalty, and wrote Les Broméliacées brésiliennes (1881), and Itinera principum S. Coburgi (1883-1888). (An Annotated Catalogue of the Generic Names of the Bromeliaceae)
.
wealei: for James Weale (1838-1911), amateur naturalist and correspondent with Charles Darwin. (Elsa Pooley)

Webbia/webbiana: for Philip Barker Webb (1793-1854), British botanist and first person to collect in the Tetuan Mountains of Morocco, also collected extensively on the Canary Islands from 1828 to 1830 and co-authored L'Histoire Naturelle des Iles Canaries in 9 volumes, the text of which took 20 years to complete. (Wikipedia)

Webera: for Georg Heinrich Weber (1752-1828), German physician and botanist. (CRC World Dictionary of Plant Names)

weberlingiorum: for Focko Weberling (1926-2009) and Dorothea (Bauer) Weberling (1928-1988), German botanists, commemorated with Ornithogalum weberlingiorum. Professor Focko Weberling is the author of Morphology of Flowers and Inflorescences (1989) and was the head of the department of botany at the University of Ulm. (David Hollombe, pers. comm.)

Websteria: for George W. Webster (1833-1914), American botanist and farmer. (CRC World Dictionary of Plant Names)

Wedelia: for Georg Wolfgang Wedel (1645-1731), German physician and botanist, professor of medicine at Jena and physician, defender of alchemy and astrology. (CRC World Dictionary of Plant Names)

weigangiana: for Mr. Weigang (fl. 1923). (Etymological Dictionary of Succulent Plant Names)

Weihea: for Carl Ernst August Weihe (1779-1834), German botanist and physician, batologist (i.e. person who studies brambles). (CRC World Dictionary of Plant Names)

Weinmannia: for Johann Wilhelm Weinmann (1683-1741), German apothecary and botanist. (CRC World Dictionary of Plant Names)

Weissia: for Friedrich Wilhelm Weiss (1744-1826), German bryologist and lichenologist of Göttingen.

weisseana: for Max Weiss (1874-?) (Vernonia) . (David Hollombe, pers. comm.)

weissianum/weissii: for Professor Frederick Ernest Weiss (1865-1953), British botanist, President of the Linnean Society.

wellandii: for Welland Cowley (1945- ), South African engineer and nurseryman, owner of Cape Flora Nursery which specializes in breeding and exporting Clivias and Strelitzias, discoverer of Cyrtanthus wellandii, keenly interest in conservation and eradication of alien species taking over the fynbos. (Pers. comm.)

Wellstedia: probably for James Raimond Wellsted (1805-1842), surveyor and traveller, officer of the East India Company's surveying ship Palinurus in the Red Sea, fellow of the Royal Geographical Society and the Royal Astronomical Society, and author of Travels to the City of The Caliphs Along the Shores of the Persian Gulf and the Mediterranean in 2 vols. (David Hollombe, pers. comm.)

Welwitschia/welwitschii: for Friedrich Martin Joseph Welwitsch (1806-1872), Austrian botanist, explorer and medical doctor who discovered Welwitschia mirabilis in 1859 in the Namib Desert of southern Angola. The story goes that he was so overcome by his find that he knelt down next to it and simply stared! Thomas Baines, the renowned artist and traveller, also found a plant in the dry bed of the Swakop River in Namibia in 1861. Welwitsch sent the first material of Welwitschia to Sir Joseph Dalton Hooker, Director of Kew, in 1862. Hooker described it and named it in honor of Welwitsch, despite the fact that Welwitsch recommended that it be named Tumboa, its native Angolan name. (PlantzAfrica)

wendlandiana/wendlandii: for Hermann Wendland (1825-1903) of Hanover, German botanist and horticulturist. In 1870 he became the director of the Royal Gardens at Herrenhausen. He was particularly interested in palms, naming some 130 species of palms, and having his name associated with more palm genera than any other botanist. He became a major figure in the botany of Central America, and is credited with having brought many now familiar house plants into cultivation for the first time.

wentzeliana: for Elizabeth Wentzel-Heckmann (1833-1914). (David Hollombe, pers. comm.)

werklei: for Carlos Wercklé (1860-1924), an eccentric German horticulturist who obtained a significant collection of ferns and orchids. (Taxon, Vol. 52, No. 3, Aug. 2003)

werneri: for Werner Triebner (fl. c.1950), South African farmer, son of Wilhelm Triebner.

wesselsii: for Dirk C.J. Wessels (1950- ), South African lichenologist.

westae: for Ethel West (later Mrs. Anderson) (c.1870-1939), British-born South African housewife and naturalist, collected over 500 specimens mainly in the East Cape.

westii: for Oliver West (1910- ), ecologist, agronomist, plant collector in Angola, South Africa and Zimbabwe, undertook first ecological studies in Zimbabwe in the 1950's.

wethamae: for Mrs. Boddam Wetham, commemorated with Delosperma wethamae. This is likely Ruby Elizabeth Boddam-Whetham (1882-1948) (née Newberry), author of A Garden in the Veld, supposedly South Africa's first book on gardening, wife of Edward Tudor Boddam-Whetham (1874-1951), sometimes written as Wetham, English-born emigrant to South Africa, owner of the farm "Van Niekerk's Rus," later changed to "Kirklington" after his ancestral home in England. (Etymological Dictionary of Succulent Plant Names; British 1820 Settlers to South Africa)

wettsteinii: for Richard Wettstein von Westersheim (1863-1931), Austrian botanist.

Whiteheadia/whiteheadii: for Rev. Henry Whitehead (1817-1884), Anglican missionary and plant collector in South Africa. (CRC World Dictionary of Plant Names)

whitei: for Alfred Samuel White (c. 1812-1870) who was a farmer in Kwa-Zulu Natal. He came to South Africa from England in 1820. (Elsa Pooley)

whitesloaneana: for Alain Campbell White (1880-1951), American botanist and chess champion, and Boyd Lincoln Sloane (1885-1955), American botanist specializing in cacti. White was the author of several books on chess, the two were co-authors of the three-volume edition of The Stapelieae (1933, 1937), considered a major work in the field, and they also co-authored with R.A.Dyer The Succulent Euphorbieae.

whyteana/whytei: for Alexander Whyte (1837-1912), Scottish New Testament scholar and plant explorer. (PlantzAfrica)

Wiborgia: for Erik Nissen Viborg (1759-1822), Danish botanist and professor of botany at the University of Copenhagen, and Director of the Botanical Garden. (CRC World Dictionary of Plant Names)

wickensii: for John Edward Wickens (1867-1949), British horticulturist. (Gunn & Codd)

Widdringtonia: for Samuel Edward Widdrington (1787-1856), a Royal Navy commander, traveller in Spain, and conifer botanist of the late 1700's and early 1800's, who published a book on European pines. (CRC World Dictionary of Plant Names)

widmeri: for Marc Widmer, with no further information. (David Hollombe, pers. comm.)

wiesei: for T.G. (Buys) Wiese (1923- ), South African farmer, husband of Margaretha Wiese, and former owner of the Kokerboom Nursery in Vanrhynsdorp now owned by his son Danie. His farm Quaggaskop was declared a national nursery. He is commemorated with Bulbine wiesei and Conophytum buysianum.

Wiesneria: for Julius Ritter von Wiesner (1838-1916), Austrian botanist, professor of plant anatomy and physiology, and traveller in India, the Dutch East Indies and North America. (CRC World Dictionary of Plant Names)

Wigandia: for Johannes Wigand (1523-1587), German author, Bishop of Pomerania. (CRC World Dictionary of Plant Names)

wightii: for Robert Wight (1796-1872), Scottish surgeon and botanist, Director of the Botanic Garden in Madras.

Wijkia: for Professor Roelof van der Wijk (1895-1981), Dutch bryologist, primary school teacher, later a college teacher of science. He specialized in mosses of the Malesian region (Malay peninsula to New Guinea) and was co-editor of the major 5-volume work Index Muscorum published in 1969. The genus was published by H.A. Crum in 1971.

wildemaniana/wildemanianum/wildemanii: for Émile August(e) Joseph de Wildeman (1866-1947), Belgian botanist specializing in fungi and ferns, and an authority on Congolese flora. He is commemorated in the former taxon Asparagus wildemanii, published in 1937 by Swedish botanist August Henning Weimarck, and now synonymized to A. schroederi, and probably with the former taxa Cissampelos wildemaniana (now C. toru-
losa) and Peucedanum wildemanianum (now Lefebvrea grantii). (David Hollombe, pers. comm.)

wildii: for Professor Hiram Wild (1917-1982), British botanist of the University of Zimbabwe, major contributor to Flora Zambesiaca.

Willdenowia/willdenowiana: for Karl Ludwig Willdenow (1765-1812), German botanist and physician, naturalist, professor of botany, Director of the Berlin Botanical Garden. A genus in the Rubiaceae was also named for him. (CRC World Dictionary of Plant Names)

williamsii: for T. Lloyd Williams (fl. 1927-1938).

williamsiorum: for Louis Otho Williams (1908-1991), American botanist who researched orchids at the Ames Orchid Herbarium at Harvard, and Terua Pierson Williams (1907- ), his wife and co-collector.

williamsonii: for Graham Williamson (1932- ), dental surgeon born in Zimbabwe, made extensive collections in Zambia and Malawi, particular orchids, author of Orchids of Central Africa. (Gunn & Codd)

Willkommia: for Heinrich Moriz Willkomm (1821-1895), German botanist, explorer, traveler, naturalist, professor of botany and Director of the Botanical Garden of the University of Prague. (CRC World Dictionary of Plant Names)

wilmaniae: for Maria Wilman (1867-1957), South African botanist and geologist, first Director of the McGregor Museum in Kimberley, South Africa. (Etymological Dictionary of Succulent Plant Names)

wilmotianus: for Mr. C. Wilmot (fl. 1939). (Etymological Dictionary of Succulent Plant Names)

wilmsiana/wilmsianum/wilmsii: for Dr. Friedrich Wilms (1848-1919), German apothecary (pharmacist), botanist and plant collector residing in Lydenburg. (PlantzAfrica) There is also a Friedrich Heinrich Wilms (1811-1880) who was probably the above Wilms' father.

wilsoniana: for Francis Robert Muter Wilson (1832-1903), Presbyterian minister and pioneer Australian lichelologist, wrote no fewer than 20 authoritative articles for eight different journals and described many new species. (Australian National Herbarium)

wilsonii: for Ernest Henry Wilson (1876-1930), English plant collector who introduced around 2000 Asian plant species to the west. He was Associate Director and then Keeper of the Arnold Arboretum in Boston. Some of the areas he made expeditions to include China, Japan, Australia, New Zealand, Central and South America and East Africa.

Wimmerella: for Franz Elfried Wimmer (1881-1961), a Viennese botanist, naturalist and Roman Catholic priest who studied the Lobeliaceae sensu stricto. (Hugh Clarke, pers. comm.)

winkleriana: for Dorothea Gudrun Winkler (1932- ), Tanzanian-born South African botanist and teacher.

winteri: for John Winter (1936- ), South African horticulturalist, educated in Zimbabwe and trained in Pretoria and Royal Botanic Gardens, Kew. He held the position of Curator of Kirstenbosch Botanic Garden from 1967- 1997. He discovered Erica winteri on the lower slopes of Watersvalsberg, north of Riversdale, Cape Province, and Leucospermum winterii at the summit of Watersvalsberg. In retirement he continues with his great interest in plants particularly Clivia and Veltheimia. (Hugh Clarke, pers. comm.)

wischkonii: there is a JSTOR specimen record of Anacampseros wischkonii being collected in Namibia by someone named Wischkon, possibly Karl Wischkon? The specimen is in the Botanic Garden and Botanical Museum Berlin-Dahlem. Clues derived from online researches indicate that Karl Wischkon was a foreman at the Khan Copper Mine just four miles south of Arandis, where the specimen of A. wischkon was collected. This would have been around 1927. A communication with a relative, Kay Wischkony, indicates that he was born in Upper Silesia and may have been born around 1854 or 1855. The species name was published in 1929 by Moritz Kurt Dinter (who was in Namibia 1922-1925 and 1928-1929) and Karl von Poellnitz. There is another specimen record of this species being collected by George Julius Ernst Gürich (1859-1938) in 1888 in Namibia, but whether he was an acquaintance of Wischkon seems unlikely in light of further evidence gleaned from posts on the RootsWeb website, including the fact that he was born in 1872 and apparently went to the Swakopmond area of South-West Africa as a soldier in 1894 (according to the Chronology of Namibian History) and then again with his wife Clara in 1902. He died in 1943 and is buried in Swakopmond where he has a grandson. (RootsWeb; Kay Wischkony, pers. comm.)

Wisneria: for a certain Wiesner, professor of botany in Vienna.

wissii: for Mr Hans-Joachim Wiss (1903–1991), a Namibian farmer and naturalist who discovered
Plumbago wissii in 1955 while working on the Brandberg. He had an interest in archaeology and collected the type specimen on Konigstein, the highest peak on the Brandberg. The plant was named by Friedrich in 1957. (PlantzAfrica)

Withania: the CRC World Dictionary of Plant Names says: "According to many authors the genus was named possibly (misspelling included!) for the English paleobotanist Henry Thomas Maire Witham (1779-1844), geologist, author of Observations on Fossil Vegetables."

Witsenia: for NicholasWitsen, an eighteenth century Dutch patron of botany. This first woody Iridaceae genus to be described was originally named Antholyza maura by Linnaeus in 1771. (PlantzAfrica)

Wolffia/Wolffiella: for Johann Friedrich Wolff (1778-1806), German physician and botanist. (CRC World Dictionary of Plant Names)

wollastonii: for Alexander Frederick Richmond "Sandy" Wollaston (1875-1930), British medical doctor, plant collector, ornithologist, botanist, climber and explorer, took part in two British expeditions to New Guinea, also as doctor, ornithologist and botanist) in the first British reconnaissance expedition to Mount Everest in 1921. He was killed in 1930 in his rooms at King's College by a deranged student, D.N. Potts, who fatally shot Wollaston and a police officer before shooting himself in a triple murder-suicide. (Wikipedia)

woodburniae: for Mrs. M. Woodburn (fl. 1925). (Etymological Dictionary of Succulent Plant Names)

Woodia/woodii: for John Medley Wood (1827-1915), Natal botanist, curator of the Natal Botanic Garden 1882-1903 and founder and director of the Natal Herbarium 1903-1913. (CRC World Dictionary of Plant Names) "John Medley Wood was a South African botanist who contributed greatly to the knowledge of Natal ferns, and is generally credited with the establishment of Uba sugar cane in Natal and for his extensive collection of Natal plants. Wood was born in Mansfield to a lawyer James Riddall Wood and Hannah Healy Weaver. His father remarried Mary Haygarth and emigrated to Durban, and John, who had spent seven years at sea after leaving school, joined him there in 1852. He soon acquired his own property at the mouth of the Umdhloti River north of Durban. Here he experimented with new crop plants. In 1855 he married his stepmother's younger sister Elizabeth Haygarth. For health reasons he moved further inland to Inanda in 1868, where he ran a trading store and did some farming. Here he developed an interest in cryptogams and started collecting ferns, mosses and fungi as well as flowering plants. He began corresponding with M.C. Cooke and Kalchbrenner, the mycologists at Kew and in Hungary. The Rev. John Buchanan, a local fern expert who had published a list of Natal ferns in 1875, assisted Medley Wood in that group. In 1880 Anton Rehmann, the Austrian botanist, visited Natal and took over Wood's collection of mosses. As a result of his growing interest in botany, he accepted the post of Curator of the Botanic Garden in Durban in 1882. From his interest in crop plants, he established the suitability of Uba sugar cane (Saccharum sinense), for conditions in Natal. During these years he collected plants extensively throughout Natal and exchanged duplicates with foreign herbaria. He was preparing the seventh volume of his Natal Plants at the time of his death in 1915. He is commemorated in the genera Woodia, Woodiella, and a large number of species names including that of Encephalartos woodii, which he first discovered in 1895 on a steep south-facing slope on the fringes of the Ngoye forest about 30 km from Mtunzini in KwaZulu-Natal.. (Wikipedia)

woodfordiana: for Emperor John Alexander Woodford (1761-1835), Captain in the 17th Leicestershire Regiment, rose to Colonel, fought at Salamanca and Waterloo, also a natural history collector and dealer in bird art, had a large and valuable library. The African wood owl (Strix woodfordii) is named for him. 'Emperor' is not a title but derives from his mother's name, Mary Emperor.

Woodsia: for Joseph Woods (1776-1864), English architect and botanist, author and Fellow of the Linnean Society. (CRC World Dictionary of Plant Names)

Wooleya: for Charles Hugh Frederick Wooley (1894- 1969), a Major in the Royal Marines, self-taught naturalist and a citrus farmer at Addo, South Africa, who later moved to Knysna.

woolleyi: for Maj. C.H.F. Wooley (fl. 1917), South African plant collector of succulents for Kirstenbosch. (Etymological Dictionary of Succulent Plant Names)

woolliana: for a Mr. Woolley of Barberton, former Transvaal, RSA. (Etymological Dictionary of Succulent Plant Names)

woollsiana: for William Woolls (1814-1893), British-born Australian clergyman, schoolmaster and botanist, author of A Contribution to the Flora of Australia, Lectures on the Vegetable Kingdom, with Special Reference to the Flora of Australia, The Plants of New South Wales, and Plants Indigenous in the Neighbourhood of Sydney, fellow of the Linnean Society.

wormaldii: for William Henry Wormald (1847-?), Curator of Queen's Park, East London from 1880 to 1903, and secretary of the parks department. (Gunn & Codd)

wormskioldii: probably for Morten Wormskjold (1783-1845), a Danish botanist who led a naval expedition to Greenland in 1813 and made the first major collection of Greenland flora there, and who subsequently sailed with Adelbert von Chamisso and J.F. Eschscholtz on Captain Otto Kotzebue's exploring voyage on the Rurik, but left the expedition at Kamchatka before it reached North America. This specific name is often spelled wormskjoldii. He was honored with the generic name Wormskioldia, which does not appear in southern Africa.

worsdellii: for Wilson Crosfield Worsdell (1867-1957), American-born British botanist, trained as a horticul-
turist, demonstrator in botany at University College, London, author of The Principles of Plant-Teratology. He went to Cape Town in 1909 and spent several years in South Africa. He is commemorated with Pilea rivularis (formerly Pilea worsdellii) in the Zoutpansberg area of South Africa in 1909, and with Sphaerulina worsdellii, a fungus that grows on Welwitschia mirabilis. (Gunn & Codd)

Wrightia: for William Wright (1735-1819), British botanist and physician, traveller, plant collector in Jamaica, and author of many botanical publications on Jamaican plants. (CRC World Dictionary of Plant Names)

wrightii: for Felix Binns Wright (1907- ), veterinarian, nature conservationist and plant collector in the Drakensberg Mts. (Elsa Pooley)

wrightii: for Charles (Carlos) Wright (1811-1885), American botanical collector, appointed botanist to the Unoited States North Pacific Surveying Expedition.

Wulfhorstia/wulfhorstii: for August Wulfhorst (1861-1936), German missionary. "He was a missionary of the Rheinische Missionsgesellschaft and came to Namibia in 1890. He established a mission station in Ondjiva (today Angola) in September 1891, together with Rhenish Missionary Meisenholl, then at Omupanda in 1892. From 1919 to 1927, Wulfhorst was stationed in Karibib. He was married to Thusnelda Wulfhorst, née Härlin in 1892." (Biographies of Namibian Personalities)

Wurmbea: for Friedrich von Wurmb (?-1781/1783), botanist, plant collector, Dutch colonial administrator. (CRC World Dictionary of Plant Names)

wurmbiana/wurmbii: for Theobald von Wurmb (1800-?), German missionary, plant collector and farmer.

wyleyana/wyleyi: for Andrew Wyley (1820/1822-1884 ), Irish-born geologist and plant collector in RSA who was appointed Geological Surveyor of the Cape of Good Hope. His name is sometimes spelled Wylie. He held several patents for improvements on firearms in the UK and one in the U.S.

wyliei: for James M. Wylie (1861-1947), Scottish-born botanist who was assistant to J.M. Wood at the Durban Botanical Gardens, trained at Kew.

Ximenia: for Francisco Ximenez, Spanish monk who wrote about the plants of Mexico in the 17th century. The genus Ximenia also occurs in America and the type species of the genus, X. americana, is the only species that occurs in southern Africa other than Ximenia caffra. (PlantzAfrica)

Youngia: for Edward Young (1684-1765), poet and writer, and Thomas Young (1773-1829), a physician, physicist and egyptologist. Alexandre Henri Gabriel de Cassini was the publisher of the genus in 1831. But what would have linked these two men whose lives did not even overlap is so far a mystery. (CRC World Dictionary of Plant Names)

youngii: for Ralph George Norwood Young (1904-1979), botanist and teacher, born in Italy, emigrated to South Africa in 1926, worked in the herbarium of the Transvaal Museum, farmed in the Transvaal, collected in Angola, Malawi, South Africa and Zimbabwe, died while on a holiday visiting his birthplace.

zahlbruckneri: for Alexander Zahlbruckner (1860-1938), Austrian botanist, mycologist and lichenologist, author of Catalogus Lichenum Universalis and Plantae Pentherianae, commemorated with Aspicilia zahlbruckneri. He was the grandson of botanist Johann Baptist Zahlbruckner. (David Hollombe, pers. comm.; Wikipedia)

Zaluzianskya: for Adam Zalusiansky von Zaluzian (1558-1613), Bohemian botanist and physician, lecturer and administrator at Charles University in Prague. (Elsa Pooley)

Zanha: possibly for K.H. Zahn, German plant collector. (CRC World Dictionary of Plant Names)

Zannichellia: for Giovanni Gerolamo Zannichelli (1662-1729), Italian botanist, physician and pharmacist. (CRC World Dictionary of Plant Names)

Zantedeschia: for Professor Giovanni Zantedeschi (1773-1846), an Italian physician and important botanist. Elsa Pooley says that it was Francesco Zantedeschi but his birth and death dates were 1797-1873, so she has the right dates but the wrong name. Francesco was a professor of physics and philosophy and carried out experiments in electrical currents and magnetism.

zantneriana: for Major Alfred Zantner (1953- ), a succulent plant collector of Ingolstadt and major in the German Army, commemorated with Haworthia zantneri, with Karl von Poellnitz he published the taxon Haworthia agavoides. (Etymological Dictionary of Succulent Plant Names)

zastrowiana: for Berengar Moritz von Zastrow (1876-1951). (David Hollombe, pers. comm.)

Zehneria: for Joseph Zehner, Austrian botanical artist. (Elsa Pooley)

zenkeri: for Georg August Zenker (1855-1922), German explorer, botanist and plant collector.

Zeyherella/zeyheri/zeyheriana: for Carl Ludwig Philipp Zeyher (1799-1858), German botanist and botanical collector, a well-known German naturalist who collected plants in South Africa. Zeyher came to the Cape in 1822, was a botanist at the Botanical Garden there, published Enumeratio plantarum Africae Australis with Christian Friedrich Ecklon, and died of smallpox. (PlantzAfrica)

zierii: For John Zier (?-1796), Polish botanist, assistant to Ehrhart and William Curtis, elected a fellow of the Linnean Society at the second meeting of the Society.

zimmermannii: for Philipp Wilhelm Albrecht Zimmermann (1860–1931), a German botanist who was Director of the Biological-Agricultural Institute at Amani, Tanzania (predecessor of the East African Herbarium, Nairobi) from 1902 to 1920. (PlantzAfrica)

Zinnia: Johann Gottfried Zinn (1727-1759), German botanist, physician, professor of botany, director of the botanical gardens at Göttingen, botanical collector and author. (CRC World Dictionary of Plant Names)

zoeae: for Zoe Harris (fl. 1935). (Etymological Dictionary of Succulent Plant Names)

zollingeri: for Heinrich Zollinger (1818-1859), Swiss botanist, plant collector and explorer whose foremost collection is now housed in the Dutch National Herbarium at the Universities of Leiden and Utrecht. Twenty species of plants, seaweeds and mushrooms bear his name and he is credited with publications on geology, meteorology and on molluscs. Although Swiss, he was considered a Dutch citizen, spoke fluent Dutch, was in the employ of the Dutch colonial government and spent all his collecting time in the Dutch East Indies. (Etymological Dictionary of Grasses, Zollinger Family History Research)

Zornia: for German pharmacist and botanist Johannes Zorn (1739-1799, author of Icones plantarum medicinalium. (CRC World Dictionary of Plant Names)

Zschackea: probably for (Georg) Hermann Zschack (1867-1937) of Bernberg, Germany. The genus was published in 1932 by Maurice Gustave Benoit Choisy and