NOTE: The epithets listed below are included here because I either did not have enough or any confirmation of their derivation, and because they warrant further investigation. Some of them are the same as names in the main sections of the site, but I couldn't be sure that they weren't named for a different person who happens to have the same name. And I emphasize that names on this list may in fact commemorate places or other things and not people.


abelii (Erica)
astridiae (Mesembryanthemum) for Mrs. Gustav Schwantes (née Astrid Elise Wilberg)?
barnabassii (Crotalaria)
baronii (Pohlia)
beattiana (Polanisia) possibly for John Carruthers Beattie (1866-1946)?
Belmontia (Gentianaceae)
benjaminiana (Utricularia)
Bilderdykia (Polygonaceae) possibly for Willem Bilderdyk (Bilderdijk), Dutch poet?
boedeckerianus (Convulvus) Friedrich Boedeker (1867-1937), German botanist and plant
  collector?
bonafouxii (Ceropegia)
borcherdsii (Schwantesia)
borgeniana (Dicranella)/borgenianum (Brachymenium)/borgenii (Pogonatum borgenii)
Bosqueia (Moraceae) Louis Auguste Guillaume Bosc?
bradlyana (Aloe)
brehmiana (Oxalis) Joachem Brehm (1789-1860)?
broadleyana (Erica)
bronkhorstii (Haworthia) possibly for a Johan Bronkhorst?
brownii (Conophytum, Staavia, Serruria, Dioscorea, Erica, Rhynchospora) Robert Brown or
  Nicholas Edward Brown?
buchholzianus (Tylecodon) possibly for Reinhold Wilhelm Buchholz (1837-1876), plant collector?
bullerianus (Convolvulus) possibly for Sir Redevers Henry Bullers (1839-1908)?
Bunburia/Bunburya (Apocynaceae) possibly for Sir Charles James Fox Bunbury (1809-1886)?
buseriana (Wahlenbergia) possibly for Robert Buser (1857-1931), Swiss botanist?
carowii (Aloe)
carterianum (Conophyllum) possibly for Mrs. Susan Carter Holmes (1933- ), British botanist?
chaplinii (Gemmaria, Strumaria)
charpentieriana (Disa): possibly for Jean G.F. de Charpentier (1786-1855), German-born Swiss   geologist, botanist and conchologist?
chiarugi (Vernonia) Alberto Chiarugi (1901-1960)?
cilliersiae (Glottiphyllum)
conradii (Conophytum)
curtisii (Riccia) possibly for Moses Ashley Curtis (1808-1872), American botanist and mycologist?
davisonii (Gladiolus)
degelii (Hypotrachyna) probably for Gunnar Bror Fritiof Degelius (1903-1993), Swedish botanist
   and lichenologist?
Deroemeria (Orchidaceae) probably for the same Mr. de Roemer (fl. 1852) for whom the orchid
   genus Deroemera is named?
Doellia (Asteraceae) possibly for German botanist Johann Christoph Doell or Döll (1808-1885)?
Doria (Asteraceae) possibly for Captaine Andreas Dorias (Andrea Dorea) (1468-1560)?
duftii (Antholyza) possibly for Gustav Duft (1859-1924?), mining official
duncaniae (Lejeunea)
dunsdoniana (Aspalathus)
duplessii (Cheiridopsis)
Edmondia (Asteraceae) probably for James W. Edmond (d. 1815), a Scottish botanist? No, he died in 1875.
edwardsii (Helichrysum) possibly for bryophyte specialist Sean Rowan Edwards (1943- )?
elizae (Juttadinteria)
elliottii (Ipomoea, Weihea, Hemizygia)
esteriana (Erica)
etaylori (Conophytum)
Felipponea (Leucodontaceae) possibly for Dr. Florentino Felippone (1849-1939), botanist and
   bryologist?
fenarolii (Cassia) probably for Luigi Fenaroli (1899-1980), Italian botanist?
fenzelianus (Cyperus) probably for Eduard Fenzl (1808-1879), Austrian physician and botanist?
forbesii (Dicerocaryum, Selago, Melhania, Tephrosia, Aspalathus)
fosteri (Arctotis)
fouchei (Haworthia) possibly for a D. Fouche, plant collector in South Africa?
frappieri (Lophocolea)
fredericii (Gladiolus, Ruschia)
gaussenii (Mesembryanthemum) possibly for French botanist Henri Marcel Gaussen (1891-1981)?
geesterani (Parmelia) possibly for Rudolf Arnold Maas Geesteranus (1911-2003), German
   mycologist?
geoffreyi (Stomatium) for Geoffrey James (fl. 1931)?
Gerdaria (Orobanchaceae)
gibbsiae (Haplomitrium)
gillettiae (Muraltia)
gillettii (Lachenalia)
gillii (Crassula) Dr. William Gill (1792-1863) or George A. Gill?
gomezianum (Ophioglossum)
goudotii (Pellaea) Jules Prosper Goudot (fl. 1830-1836)?
graessneri (Conophytum, Cheiridopsis) Richard Grässner (1875-1942) German cactus grower?
Grangea (Asteraceae)
grantiae (Delosperma) possibly for Dr. Adèle Gerard Grant (née Lewis) (1881-1969), American
  botanist?
greenii (Aloe, Haworthia)
grenvilleae (Pelargonium) Right Honorable Lady Grenville?
grobleri (Aspalathus) possibly for Paul Johan Grobler (1937- ), South African botanist?
grossartii (Polycarpaea) Dr. William Grossart, Scottish surgeon and geologist?
guerranum (Indigastrum) possibly for Guilherme Guerra, Director of Agriculture and Forests, Luanda
  Prov., Angola?
guillauminii (Kalanchoe) possibly for Prof. André Louis Joseph Edmond Armand Guillaumin (1885-
  1974), French botanist?
haaglenii (Gibbaeum)
hackeliana (Ipomoea) Eduard Hackel (1850-1926)?
haegarthii (Pavetta)
Hainardia (Poaceae) Pierre Hainard (1936- ), Swiss botanist?
helenae (Ischyrolepis)
helmae (Lithops)
henssenianum (Colchicum)
herbertii (Sphalmanthus, Aridaria, Lithops, Wachendorfia)
hermannii (Ornithogalum, Mertensia)
heyniae (Alectra)
hibbertii (Erica) possibly for George Hibbert (1757-1837), eminent English merchant?
hieronymii (Lycopodium)
hildebrandii (Blepharis) Johann Maria Hildebrandt (Hildebrand)?
hillianum (Thesium)
hillii (Anacampseros) L.J. Hill?
hilmarii (Aloinopsis) for Hilmar Albert Lückhoff (1916-1994)?
hoepfneri (Hemizygia) probably for Carl Hoepfner (1857-1900), German-born geologist?
hoffmanniana (Disparago)
hofmeyeriana (Crassula)
hollandii (Lampranthus, Thesium)
holtzii (Celtis, Diospyros) probably for Wilhelm Holtz (fl. 1901-1912), plant collector?
hooleae (Faucaria)
hopkinsii (Brachystegia) probably for John Collier Frederick Hopkins (fl. 1931), British botanist?
howardiana (Ficus) possibly for Charles Walter Howard (1882-1928)?
huntleyi: probably for Professor Brian (John) Huntley (1944- )
jarmilae (Tylecodon, Conophytum) probably for Jarmila Haldová (fl. 2002), wife of Czech botanist
   and cactus specialist Josef J. Halda?
Jensenia (Pallaviciniaceae) same as Jensenobotrya, Emil Jensen?
johannsenii (Hermannia) Y. Johanssen?
johannis (Tiliacora)
jonesiae (Haworthia) for Mrs. Eustace Wilkinson Jones (1909-?)?
juritzii (Carpobrotus, Mesembryanthemum) probably for Dr. Charles Frederick Juritz (1864-
  1945), analytical chemist?
Karoowia (Parmeliaceae)
keilhackii (Adromischus) possibly for Friedrich Ludwig Heinrich Konrad Keilhack (1858-1944)?
kennedyi (Conophytum)
kerstenii (Erica, Albuca, Ornithogalum) possibly for Otto Kersten (1839-1900), pioneer explorer?
kiaerii (Cephaloziella) probably for Dr. Frantz Casper Kiaer (Kiær) (1835-1893), Norwegian
   physician?
Killickia (Lamiaceae) Donald Joseph Boomer Killick?
klugei (Disa)
kraeuseliana (Commiphora) possibly for Richard Oswald Karl Kräusel (Kraeusel) (1890-1966),
   German botanist?
krausei (Commiphora) possibly for Kurt Krause (1883-1963), German botanist?
kreugeri (Pittosporum)
krigeae (Erica) possibly for an A.M Krige, plant collector?
kuntzeanus (Plectranthus) Carl Ernst Otto Kuntze?
kunzei (Onychium) possibly for Gustav Kunze (1793-1851), a German professor of
  zoology and entomologist?
lacourtianum (Dialium)
lamarckiana (Aspalathus) Jean Baptiste Antoine Pierre de Monnet de Lamarck?
laureri (Catinaria) possibly for Johann Friedrich Laurer (1798-1873), German pharmacologist and
  lichenologist?
lavallei (Crataegus)
leschenaultii (Potamogeton) Jean Baptiste Louis (Claude) Théoodor Leschenault de la Tour
  (1773-1826)?
lindaviana (Oxalis)
lindenbergii (Frullania) Johann Bernard Wilhelm Lindenberg?
lingelsheimii (Bridelia) possibly for Alexander von Lingelsheim (1874-1937), German botanist?
lorbeeriana (Targionia) probably for Gerhard Lorbeer (?-1945), German bryologist?
Loudetia (Poaceae) possibly for Dr. Eduard Loudet (1811-1867), a German dentist and surgeon?
lyalli (Indigofera) possibly for Dr. Robert Lyall (1790-1831), Scottish botanist?
maclayana (Parmelia)
macleai (Orthotrichum)
mallyi (Oxalis) possibly for Charles William Mally (1872-1953), American-born and educated
  entomologist?
marshalli (Aloe)
martindalei (Ephebeia)
mclarenii (Haworthia)
mechowii (Hibiscus) probably for Friedrich Wilhelm Alexandre von Mechow (1831-1890),
  Prussian officer?
mendesii (Erythrina, Phyllanthus) probably for Eduardo José Santos Moreira Mendes (1924- ),
  Portuguese botanist?
mennellii (Piaranthus)
merenskyanum (Amphiasma)
merenskyanus (Cryptostephanus)
merkeri (Commiphora) possibly for Moritz Merker (1867-1908), German scholar?
mooreanus (Senecio) Dr. David Moore?
morganii (Conophytum)
moylei (Ornithogalum) William Moyle Rogers?
Muellerella (Verrucariaceae)
naumanniana (Eleocharis) probably for Friedrich Carl Naumann (1841-1902), German plant
   collector and medical doctor?
neilsoniae (Cryophytum)
nelsii (Asparagus, Philenoptera) possibly for Louis Nels (1855-1910), German government official
   in German South-West Africa?
nelsoniae (Khadia)
norwalteri (Xanthoparmelia)
nouchali (Nymphaea)
nysiae (Glottiphyllum)
olivettiana (Haworthia)
orsmondiae (Ruschia)
Osmunda (Osmundaceae)
oweniae (Clematis)
paxiana (Euphorbia)/paxii (Cleome, Polanisia) possibly for Ferdinand Albin Pax (1858-1942),
   German botanist?
persoonii (Haematomma, Calophanes) possibly for Christian Hendrik Persoon (1761-1836),
  South African-born botanical illustrator?
pervillei (Lasiodiscus) Auguste Pervillé?
petiveri (Erica) possibly for James Petiver (1658-1718), London apothecary, botanist?
plantii (Watsonia) possibly for a Robert W. Plant (?-1858), British-born nurseryman?
poeltii (Buellia) probably for Josef Poelt (1924-1995), Austrian lichenologist?
polackii (Streptocarpus)
pottsiana (Riccia)
pritzeliana (Gynandriris, Moraea)/pritzelii (Gladiolus) probably for Ernst Georg Pritzel (1875-
  1946), German botanist?
purcellii (Crassula): probably for William Frederick Purcell (1866-1919), British-born emigree to
  SA?
Ramboldia (Lecanoraceae) possibly for Gerhard Walter Rambold (1956- )?
rawei (Conophytum) Rolf Rawé?
Reichardia (Fabaceae) Johann Jacob Reichard (1743-1782)?
renauldii (Metzgeria) probably for Ferdinand François Gabriel Renauld (1837-1910), French
   botanist?
renniei (Conophytum)
richardiana (Disa, Cheiridopsis) probably for Achille Richard (1794-1852)?
richardii (Macromitrium, Potamogeton)
rivae (Stemodiopsis) possibly for a Dr. Domenico Riva (1856-1895)?
robbertsii (Acacia)
robertsoniae (Gladiolus) W.M. Robertson?
robynsiana (Acacia) probably for Frans Hubert Edouard Arthur Walter Robyns (1901-1986),
  Belgian botanist?
roscheri (Vanilla) probably for Albrecht Roscher (1836-1860)?
Sansevieria (Dracaenaceae) Count Pietro Antonio Sanseverino, an 18th century Italian patron of
   horticulture in Naples or Raimondo di Sangro (1710-1771), Prince of Sansevero, Italian nobleman
   and author?
sardienii (Ornithogalum) probably for Tommy Sardien (1932- ), plant collector?
schaereri (Buellia)
schenckii (Gazania, Sesamum, Brownanthus, Tetragonia) probably for Adolf Schenck (1857-
  1936), German geographer, minerologist and botanist?
schickiana/schickianum (Cheiridopsis, Conophytum) Carl Schick (1881-1953)?
schleicheri (Acarospora) possibly for a Johann Christoph Schleicher (1768-1834), plant collector?
schoenfelderii (Geigeria)/schoenfelderiana (Vernonia)
schreiberae (Salsola)
schroeteri (Phymaspermum) possibly for Carl Schröter (Schroeter) (1855-1039), Swiss ecologist?
seitziana (Cissus, Hermannia)
sellowianum (Ptychomitrium) Friedrich Sello (changed to Sellow in later years) (1789-1931),
  German botanist?
sitzlerianum (Conophytum)
smithersii (Conophytum)
spragueanum (Viscum) possibly for Thomas Archibald Sprague (1877-1958), Scottish botanist?
sprenglianum (Echium)
sprenglianus (Lobostemon)
standleyanus (Amaranthus) possibly for Paul Carpenter Standley (1884-1963), American   Amaranth authority?
steetziana (Vernonia)/steetzii (Helichrysum) possibly for Joachim Steetz (1804-1862), German
   botanist?
stefaniae (Gladiolus)
steinbergiana (Erica)
stephansenii (Isoetes)
Steudelia (Molluginaceae): possibly named for German botanist and physician Ernst Gottlieb von
   Steudel (1783-1856)
sutherlandi (Hebenstreitia)
taubertiana (Brachystegia)/taubertii (Dolichos) possibly for Paul Hermann Wilhelm Taubert (1862-
  1897), German botanist?
templemannii (Gladiolus, Pillansia)
theresae (Aspalathus)
thomsiana (Strychnos)
tischeri (Conophytum)
tomasi (Conophytum)
townsendiae (Homeria)
triebeliae (Xanthoparmelia) possibly for Dagmar Triebel (1957- ), German lichenologist at Munich?
trinkleriana (Ficinia) possibly for Emil Trinkler (1896-1931), German geographer and explorer?
trothae (Lycium, Freyliniopsis)
Turraea (Meliaceae) possibly for Antonio Turra (1730-1796), Italian botanist and physician?
tyrrhea (Parmelia)
uhligii (Carex) possibly for Viktor Karl Uhlig (1857-1911), a German geologist?
uhrii (Erica)
ulbrichiana (Crotalaria) possibly for Oskar Eberhard Ulbrich, German professor, botanist and
  mycologist?
upingtoniae (Oligomeris)
uysiae (Gladiolus)
vainioi (Tricharia) possibly for Edvard (Edward) August Vainio (1853-1929), Finnish mycologist
  and lichenologist?
vandenberghenii (Metzgeria) possibly for Constant Vanden Berghen (1914-2004), Belgian
  professor of botany?
vanderbylii (Paraparmelia, Chiodecton) probably for Paul Andries van der Byl (Bijl) (1888-1939),
  a collector of succulents?
vanniekerkiae (Ruschia)
vansonii (Caralluma) possibly for George Van Son (1898-1967)?
vanzyliae (Romulea)
vaupeliana (Lapeirousia) possibly for Friedrich Karl Johann Vaupel (1876-1927), German botanist
  and explorer?
vermeuleniae (Mesembryanthemum)
villaumei (Lejeunea) probably for Rév Père Edouard S.J. Villaume (1849-1920)?
vogeliana (Vernonia)
walthamii (Sparaxis)
warmingii (Leiothylax)/warmingiana (Ledermanniella) probably for Johannes Eugenius (Eugen)
   Bülow Warming (1841-1924), Danish botanist?
watsonius (Gladiolus)
weberi (Lithops)
weberianum (Aptosimum)
Wellstedia (Boraginaceae) probably for James Raimond Wellsted (1805-1842), surveyor and
  traveller?
weimarckii (Cliffortia)
wischkonii (Anacampseros) possibly a Karl Wischkon?
worcesteri (Parmelia)
wordsworthiae (Lampranthus)
wormskioldii (Ammannia) probably for Morten Wormskjold (1783-1845), a Danish botanist?
Zanha (Sapindaceae) possibly for K.H. Zahn, German plant collector?


Need dates for:

Albertyn, Mrs. Joan (Erica albertyniae)
Albizzi, Filippo degli (Albizia)
Allan, Alexander Y. (Metzgeria allanii)
Allison, Martinus Stuart (Eulophia allisonii and Disperis allisonii)
Alves, Bento António (or possibly António Bento) (Alvesia)
Andrews, Henry Charles (Pelargonium andrewsii and Argyrolobium andrewsianum)
Ansell, John (?-1847) (Ansellia)
Archer, Mrs. Jacoba (Kowie) M.N. (Lithops archerae)
Armstrong, William (Haworthia armstrongii)
Aucamp, Miss Juanita (Lithops aucampiae)
Mr. Axthelm ((fl. 1923) (Ruschia axthelmiana)
Baesecke, Paul (Anacampseros baeseckei)
Balkwill, Clifford George (1924- ) (Peristrophe cliffordii)
Barnes, Phyllis E. (c.1907-?) (Agathosma barnesiae)
Barter, Charles (?-1859) (Drimia barteri)
Barwick, Mr. A. F. (Drosanthemum barwickii)
Batten, Auriol Ursula (1918- ) (Haworthia batteniae and Lachenalia aurioliae)
Bath, George (Agathosma bathii)
Bayliss Mrs. Estelle (née Dell) (Ceropegia estelleana)
Bayliss, Roy Douglas Abbot (1909- ) (Lampranthus baylissii and Stapelia baylissii)
Beil, Ludwig Heinrich (?-1852) (Polygala beiliana and Muraltia beiliana)
Bergh, Mrs. J. (Lampranthus berghiae)
Berrisford, Mr. G. (Berisfordia)
Bertelsen, Ellen Sophie (Lejeunea helenae)
Bertling, F. (Melinis bertlingii)
Beswick, Mr. (Khadia beswickii)
Beukman, Mr. C. (Luckhoffia beukmanii)
Blackburn, Mrs. H. (Haworthia blackburniae and Gibbaeum blackburniae)
Boast, Mr. H.E. (Aloe boastii)
Bolton, Maj.Gen. Daniel (? – 1860) (Asplenium boltonii and Bonatea boltonii)
Borle, Mrs. Jeanne M. (1880-?) (Acacia borleae)
Boss Dr. Georg (?-1972) (Blepharis bossii)
Bossche, Mr. L. Van den (Faucaria bosscheana)
Bouteille, J. (Fellhanera bouteillei)
Boyle, F.(Aloe boylei)
Brass, William (?-1783) (Capparis brassii)
Braybon, Mrs. H. (Mystacidium brayboniae)
Breach, W. (Nerine breachiae)
Bromfield, Mr. H. (Lithops bromfieldii)
Brown, Miss Edith Elizabeth (1876-?) (Lithops edithiae and Conophytum edithiae)
Bryhn, Haakon (Fissidens haakonii and Campylopus bryhnii)
Buckerveld, M.H. (Antholyza buckerveldii)
Buhr, Elias A. (Aloe buhrii)
Burger, Mrs. Irma (Conophytum irmae)
Burger, Peter (Pieter) (Pelargonium burgerianum)
Burger, Willem (Conophytum burgeri)
Burgess, Miss (Dombeya burgessiae)
Burgess, Rev. Dr. John (1758-?) (Leptogium burgessii)
Burmeister, Julie (Xanthoparmelia burmeisteri)
Burnet, Alice Mary (Leptogium burnetiae)
Burton, Richard Charles Fryer (Strychnos burtonii)
Caporn, Andrew St. Clair (1893-?) (Ruschia capornii)
Carvalho, Manuel Rodriguez de (Chrysophyllum carvalhoi)
Cavaco, Alberto Judice Leote (1916- ?) (Euphorbiaceae)
Challis, Chris (Aloe challisii)|
Chaplin, J. (Strumaria chaplinii)
Charlier, Captain H.A. (?-1887) (Indigofera charlieriana)
Chilvers, C.W. (Ochna chilversii)
Chodat, Ester (Polygala esterae)
Christie, G.R. (Heliophila christeana)
Claessens, J. (Cycnium claessens)
Cloete, Miss F. (Delosperma cloeteae)
Collins, Maria (Min ) Carolina (?-1918) (Drosera collinsiae)
Cook, F.J. (Moraea cookii and Homeria cookii)
Craus, Sebastian J. (Haworthia crausii)
Creasey, Leslie Bernard (1904- ) (Oxalis creaseyi)
Cronemeyer, Gustav (1832?-?) (Delosperma cronemeyerianum)
Cruden, Frank (Albuca crudenii)
Cumming, David (Haworthia cummingii)
Curror, Andrew Beveridge (1811-?) (Cyphostemma currorii and Hoodia currorii)
Dabner, Mr. (Lithops dabneri)
D'Alton, Nick (Lobostemon daltonii)
Davidson, Dr. (Mrs.) Lynette Elizabeth (née Cook) (1916-?) (Drimiopsis davidsoniae)
Davis, G.A. (Glottiphyllum davisii)
de Boer-Weyer, Mrs. Gesina (Lithops gesineae)
De Giorgi, Stephano Oronzo Vicenzo (fl. 1913-1923) (Loranthus giorgii)
de Walle, Édouard de Ghellinck (Encephalartos ghellinckii)
de Jager, Ina (Drosanthemum dejagerae and Mesembryanthemum dejagerae)
de Leeuw, Mrs (Delosperma deleeuwiae)
de Wet, J.F. (Aloe dewetii)
Deas, W. (Cotyledon deasii and Veltheimia deasii)
Debeerst, Gustave (Cryptolepis debeerstii)
Dehn, Mrs. Gertrude (1884-?) (Heteropyxis dehniae)
Dekenah (1904-?), Ivor (Antimima ivori)
Delessert, Adolphe (Radula delessertii)
Delpierre, Georges R. (Gladiolus delpierrei and Tritonia delpierrei)
Dick, (Viktor?) (Hexacyrtis dickiana)
Dinter, Helena Jutta (Mesembryanthemum dinterae)
Di Page, Mrs. (Drosanthemum dipageae)
Dortmann, Herr (Dortmannia)
Dunsdon, L. or J. (Disphyma dunsdonii)
Du Plessis, Miss Rosalie (later Mrs. C. Gill) (Acrodon duplessiae and Drosanthemum duplessiae)
Duckitt, Frederick W. (Ixia frederickii and Gladiolus frederickii)
Edmond, James W. (d. 1815) (Edmondia)
Edwards, Ayla (Streptocarpus aylae)
Eichinger, Alfons (1883-?) (Eragrostis eichingeri)
Eick, Emil (Manilkara eickii)
Engel, Dr. (Helichrysum engelianum)
English, Mrs. N. (Prenia englishiae and Mesembryanthemum englishiae)
es-Ssamadi, Mohammed abd (Homalium abdessammadii)
Fagelius, Caspar (Fagelia)
Ferguson, Mrs. Emily Pauline Reitz (1872-?) (Haworthia emelyae and Gladiolus emeliae)
Ferret, Pierre Victor Ad (fl. 1848) (Feretia)
Flanagan, Florence Reynolds (Mrs. Henry George) (Impatiens flanaganiae)
Fleck, Dr. Eduard (Acacia fleckii and Acrotome fleckii)
Foley Mr. W.J. (Bulbine foleyi and Pteronia foleyi)
Forbes, Mrs. Evelyn J. (Senecio evelynae)
Förmer Rudolf (Foermer) (Geigeria foermeriana)
Forrester, H.J. (Conophytum forresteri)
Forsström, Johan Erik (Forsstroemia)
Foster, Cyril W. (Aloe fosteri)
Fraser, George Hobart Bedford (1870-?) (Rhus fraseri and Pseudoscolopia fraseri)
Freylino, Count L. de (Freylin) (Freylinia)
Friedrich, Margarete (Margarethe) (Euphorbia friedrichiae and Conophytum friedrichiae)
Fuller, Ernst R. (Conophytum fulleri, Ruschia fulleri and others)
Gaillard de Charentonneau, Antoine René (Gaillardia)
Gairdner, Miss A.E. (Indigofera gairdneri)
Galinsoga, Mariano Martinez (?-1797) (Galinsoga)
Gardner, Edward (Hedychium gardnerianum)
Gardner, J. (Tragia gardneri)
Geard, Mr. (Gladiolus geardii)
Gibson, Lance F. ("Gibby") (Nerine gibsonii)
Giffen, Malcolm Hutchinson (1902-?) (Trachyandra giffenii and Delosperma giffenii)
Gill, George A. (Sporobolus gillii)
Glass, James (fl. 1892-1893) (Neodregea glassii)
Glover, Ruth (later Mrs. Wordsworth) (fl. 1915) (Gloveria)
Good, Mrs. R. (fl. 1923) (Ruschia goodiae)
Goudot, Jules Prosper (fl. 1830-1836) (Pellaea goudotii?)
Gower, Stella Irene (Mrs. Louw) (Arctotis gowerae)
Green, Dave (Barleria greenii)
Green, C.G. or G.H. (fl. 1880) (Aloe greenii and Haworthia greenii)
Grisbrook, Gysbert (Erica gysbertii)
Guerra, Guilherme (Indigastrum guerranum)
Haagner, Peggy (Lavrania haagnerae)
Haaslund-Smith (Schmidt), Ole (d. 1802) (Hoslundia)
Hänel (Haenel), Christine (Raphionacme haeneliae)
Hansford, G. (Erica hansfordii)
Heenan, Denis (Encephalartos heenanii)
Helm, Mrs. M. (Haworthia helmiae, Gibbaeum helmiae)
Helme, Nick A. (Hesperantha helmei, Freylinia helmei, Metalasia helmei, Geissorhiza helmei)
Hendrickse, S. J. (Erica hendricksei)
Hermann, Ernst (Stipagrostis hermannii)
Heywood, A.W. (Heywoodia)
Hieronymus, Georg (Lycopodium hieronymii)
Hock, Adrien (Trichodesma hockii, Aneilema hockii and Gladiolus hockii)
Holloway, Henry Mitchell (1904- ) (Ruschia hollowayana)
Holt, W.E. (Erica holtii)
Hörlein, Johannes (Lampranthus hoerleinianus, Justicia hoerleiniana? Cotyledon hoerleiniana?)
Horsfall, J.B. (Eulophia horsfallii)
Hugo, Augustus Johannes (?-1753) (Hugonia)
Hundt, Otto (Alectra hundtii)
Hurling, J. (Lampranthus hurlingii, Haworthia hurlingii)
Immelman, Mrs. (Stapelia immelmaniae, Lampranthus immelmaniae)
Iversen, Hans (Leptoscyphus iversenii)
Jacottet, Hélène A.(Rhynchosia jacottetii, Satyrium jacottetiae, Chaenostoma jacottetianum)
James, Geoffrey or H.W.? (Stomatium geoffreyi)
King, Gordon (fl. 1937) (Haworthia gordoniana)
King, Mrs. Isabella (Haworthia isabellae)
MacGregor, Neil (Gethyllis gregoriana)
Manière, Amandine (Amandinea)
Mathaei, Goswin (Albuca goswinii)
Meyer, Gerlinde (Blepharis gerlindae)
Meyer, Helmut Ernst Meyer (1908- ) (Lithops helmutii, Conophytum helmutii)
Muir, Hortense (Muiria hortenseae)
Nordenstam, Gunilla (Lindberg) (Felicia gunillae)
Peckover, Christiane (Brachystelma christianeae and Tenaris christianeae)
Pehlemann-Brase, Inge (Huernia ingeae)
Schlechter, Hugo (Titanopsis hugo-schlecteri)
Schneider, Mrs. Elisabeth (Lithops elisabethiae)
Schwantes, Dorothea (1849-?) (Dorotheanthus)
Smith, Mrs. Blanche Humphrey (Erica blancheana)
Steudel, Hellmuth (Hellmuthia)
Thulin, Gunilla (Gunillaea)
Toit-Reitz, Mrs. Christina du (Lithops christinae)
van den Thoorn, Miss J.J. Elisa (Lithops elisae)
van der Byl, Mrs. Catherine (1882- ) (Leucospermum catherinae)
van Heerd, Helena (Conophytum heleniae)
van Thiel, Jacques (Anacampseros vanthielii)
Venter-Jacobs, Mrs. Glaudina (Lithops glaudinae)
von Chauvin, Marie (Conophytum chauviniae)
Wiese, T.G. (Buys) (Conophytum buysianum)
Williamson, Françoise Marie-Lise (née Clerc) (Bulbine francescae and Euphorbia francescae)
Zimmermann, Konstanze ( Schwantesia constanceae)
Zorilla y Dávila, Cenón (or Zenón) Alonso Acosta (1756-?) (Alonsoa)


Names from the Checklists of Lichens and Lichenicolous Fungi of South Africa, Namibia, and Lesotho (from the website Biodiversity of Lichens and Lichenicolous Fungi created by the University of Hamburg) to be addressed when I have time:
(*Again, some of these names may not commemorate people, and some may already be in the main dictionary)

Acarospora bylei or bylii (which is correct?), Graphina bylii, Lecanora bylii, Tylophoron bylii,   Xanthoparmelia vanderbylii
Acarospora finckei, Catillaria finckei, Dermatocarpon finckei, Lecidea finckei
Acarospora oertendahlii
Acarospora schleicheri
Acarospora steineri, Usnea steineri
Amandinea brugierae
Anthracothecium thwaitesii
Arthonia wilmsiana, Pertusaria wilmsii, Pyrenula wilmsiana
Bacidia beckhausii
Bacidia friesiana
Biatorella armstrongiae
Blastenia brunnthaleri, Buellia brunnthaleri, Xanthoparmelia brunnthaleri
Blastenia schinziana
Blastenia vasquesia
Bombyliospora domingensis
Buellia lauricassiae
Buellia ocoteae
Buellia stizenbergeri
Bulbothrix goebelii
Caloplaca almbornii, Collema almbornii, Micarea almbornii, Xanthoparmelia almbornii
Caloplaca hampeana
Caloplace volkii
Canoparmelia crozalsiana
Canoparmelia raunkiaeri
Catillaria bouteillei
Chiodecton vanderbylii
Cladonia floerkeana
Davtylospora hafellneriana
Dermatiscum thunbergii, Diploschistes thunbergianus, Gyalecta thunbergiana
Diploschistes euganeus
Diploschistes hensseniae
Diploschistes isabellinus
Dirinaria leopoldii
Erioderma leylandii
Graphina acharii
Graphis devestiens
Haematomma fenzlianum
Haematomma persoonii
Heppia guepini
Heteroderma allardii
Heteroderma boryi
homostegia piggotii
Hypotrachyna colensoica
Lecanographa tehleri
Lecanora blanda
Lecanora breuteliana
Lecanora rehmannii
Lecanora vincentina
Lecidea bruguierae
Lecidea owaniana
Lecidea trichiliae
Lecidea zeyheri
Leptogium brebissonii
Leptogium burgesii
Leptogium hildenbrandii
Leptogium kraussii
Leptogium menziesii
Lichenoconium folmannii, Neofuscelia follmannii
Lopadium mariae
Lopadium woodii
Micoporella lahmii
Neofuscelia dregeana, Siphula dregei
Neofuscelia esterhuyseniae, Xanthoparmelia esterhuyseniae
Opegrapha bonplandi
Opegrapha menyharthii
Opegrapha zanei
Pannaria hookeri
Pannaria tavaresii
Paraparmelia mougeotii, Sticta mougeotiana, Xanthoparmelia mougeotii
Paraparmelia rodriguesiana, Peltula rodriguesii
Parmelinella wallichiana
Parmotrema cooperi
Parmotrema grayanum
Parmotrema maclayanum
Parmotrema poolii
Parmotrema soyauxii
Parmotrema zollingeri
Peltula bolanderi
Peltula koflerae
Pertusaria diaziana
Pertusaria wawreana
Physcia biziana
Physcia clementiana
Placopsis lambii
Punctelia borreri
Pyrenopsis mackenziei
Pyrenula knightiana
Pyxine eschweileri
Pyxine meissneri
Ramalina bourgeana
Ramalina ecklonii
Rinodina huefferiana
Rinodina huillensis
Roccella arnoldii
Rocella montagnei
Stereocaulon meyeri
Sticta hornemannii
Sticta hesseana
Sticta thoursii
Sticta weigelii
Trypethelium eluteriae
Usnea bornmuelleri
Usnea flotowii
Usnea havaasii
Xanthodactylon alexanderbaai
Xanthomendosa mendozae
Xanthoparmelia beatricea
Xanthoparmelia burmeisteri
Xanthoparmelia domokosii
Xanthoparmelia filsonii
Xanthoparmelia geesterani
Xanthoparmelia khomasiana
Xanthoparmelia kurokawae
Xanthoparmelia serusiauxii
Xanthoparmelia schenkiana
Xanthoparmelia standaertii
Xanthoparmelia walteri
Xanthoparmelia weberi
Xanthoparmelia wesselsii
Xanthonia marlothii