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492.0000 Family Rubiaceae Juss.; Gen. Pl. [Jussieu] 196 (1789), nom. cons.
589 genera, ca. 14.200 spp. mostly tropics, comparably few temperate. Phylogeny: Razafimandimbison & Rydin (2024)
Species listed in database: 14370; hybrids: 47
= Aparinaceae Hoffmanns. & Link; Fl. Portug. [Hoffmannsegg] 2: 3, 38 (1813-1829)
= Asperulaceae Cham. ex Spenn.; Handb. Angew. Bot. 2: 493 (1835)
= Catesbaeaceae Martinov; Tekhno-Bot. Slovar 111 (1820)
= Cephalanthaceae Raf.; Ann. Gén. Sci. Phys. 6: 86 (1820)
= Cinchonaceae Batsch; Tab. Affin. Regni Veg. 234 (1802)
= Coffeaceae Batsch; Tab. Affin. Regni Veg. 233 (1802)
= Coutareaceae Martinov; Tekhno-Bot. Slovar 168 (1820)
= Dialypetalanthaceae Rizzini & Occhioni; Lilloa 17: 253 (1948), nom. cons.
= Galiaceae Lindl.; Intr. Nat. Syst. Bot., ed. 2: 249 (1836)
= Gardeniaceae Dumort.; Anal. Fam. Pl. 29, 32 (1829)
= Guettardaceae Batsch; Tab. Affin. Regni Veg. 235 (1802)
= Hameliaceae Mart.; Consp. Regn. Veg. [Martius] 31 (1835)
= Hedyotidaceae Dumort.; Commentat. Bot. [Dumortier] 57 (1822)
= Henriqueziaceae Bremek.; Acta Bot. Neerl. 6 (Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 141): 371 (1957)
= Houstoniaceae Raf.; Good Book 21 (1840)
= Hydrophylacaceae Martinov; Tekhno-Bot. Slovar 318 (1820)
= Lippayaceae Meisn.; Pl. Vasc. Gen. [Meisner], Tab. Diagn. 156, Comm. 112 (1838)
= Lygodisodeaceae Bartl.; Ord. Nat. Pl. 123, 207 (1830)
= Naucleaceae Wernham; New Phytol. 11: 225 (1912)
= Nonateliaceae Martinov; Tekhno-Bot. Slovar 420 (1820)
= Operculariaceae Juss. ex Perleb; Vers. Arzneikr. Pfl. 207 (1818)
= Pagamaeaceae Martinov; Tekhno-Bot. Slovar 447 (1820)
= Psychotriaceae F.Rudolphi; Syst. Orb. Veg. 49 (1830)
= Randiaceae Martinov; Tekhno-Bot. Slovar 534 (1820)
= Sabiceaceae Martinov; Tekhno-Bot. Slovar 555 (1820)
= Spermacoceaceae Bercht. & J.Presl; Přir. Rostlin 256 (1820)
= Theligonaceae Dumort.; Anal. Fam. Pl. 15, 17 (1829), nom. cons.
492.7525 Genus Multidentia Gilli; Ann. Naturhist. Mus. Wien 77: 21 (1973)
Distribution: Tropical Africa
Species listed in database: 10
species :
Multidentia castaneae (Robyns) Bridson & Verdc.; Kew Bull. 42(3): 651 (1987)
Distribution: Tanzania
25 TAN
Synonyms: hidden
= Canthium stuhlmannii Bullock; Bull. Misc. Inform. Kew 1932: 376 (1932)
= Vangueriopsis castaneae Robyns; Bull. Jard. Bot. État Bruxelles 11: 258 (1928)
species :
Multidentia concrescens (Bullock) Bridson & Verdc.; Kew Bull. 42(3): 653 (1987)
Distribution: Tanzania; Zambia; Malawi
25 TAN 26 MLW ZAM
Synonyms: hidden
= Multidentia verticillata Gilli; Ann. Naturhist. Mus. Wien 77: 21 (1973)
= Pygmaeothamnus concrescens Bullock; Bull. Misc. Inform. Kew 1933: 471 (1933)
species :
Multidentia crassa (Hiern) Bridson & Verdc.; Kew Bull. 42(3): 652 (1987)
Distribution: Central African Republic; D. R. Congo [Zaire]; Burundi; South Sudan; Ethiopia; Uganda; Kenya; Tanzania; Angola; Zambia; Malawi; Zimbabwe; Mozambique
23 BUR CAF ZAI 24 ETH SSU 25 KEN TAN UGA 26 ANG MLW MOZ ZAM ZIM
Synonyms: hidden
= Canthium crassum Hiern; Fl. Trop. Afr. [Oliver et al.] 3: 145 (1877)
= Canthium dictyophlebum S.Moore; J. Bot. 57: 87 (1919)
= Canthium opimum S.Moore; J. Linn. Soc., Bot. 37: 308 (1906)
= Craterispermum orientale K.Schum.; Pflanzenw. Ost-Afrikas [Engler] C 387 (1895)
= Plectronia opima (S.Moore) Mildbr.; Notizbl. Bot. Gart. Berlin-Dahlem 9: 204 (1924)
= Vangueria crassa (Hiern) Schweinf. ex Hiern; Fl. Trop. Afr. [Oliver et al.] 3: 145 (1877)
variant :
var. ampla (S.Moore) Bridson & Verdc.; Kew Bull. 42(3): 653 (1987)
Distribution: Cameroon; Tanzania; Zambia; Malawi; Mozambique
23 CMN 25 TAN 26 MLW MOZ ZAM
Synonyms: hidden
= Canthium amplum S.Moore; J. Bot. 57: 87 (1919)
species :
Multidentia dichrophylla (Mildbr.) Bridson; Kew Bull. 42(3): 646 (1987)
Distribution: Cameroon; Congo [Brazzaville]; D. R. Congo [Zaire]; South Sudan; Uganda
23 CMN CON ZAI 24 SSU 25 UGA
Synonyms: hidden
= Canthium bicolor (De Wild.) C.M.Evrard; Bull. Jard. Bot. Natl. Belg. 37: 458 (1967)
= Plectronia bicolor De Wild.; Pl. Bequaert. 3: 179 (1925)
= Plectronia dichrophylla Mildbr.; Notizbl. Bot. Gart. Berlin-Dahlem 9: 204 (1924)
= Vangueriopsis sillitoei Bullock; Bull. Misc. Inform. Kew 1940: 57 (1940)
species :
Multidentia exserta Bridson; Kew Bull. 42(3): 647 (1987)
subspecies :
subsp. exserta
Distribution: Tanzania; Zimbabwe; Mozambique
25 TAN 26 MOZ ZIM
subspecies :
subsp. robsonii Bridson; Kew Bull. 42(3): 649 (1987)
Distribution: Zambia; Malawi; Mozambique
26 MLW MOZ ZAM
species :
Multidentia fanshawei (Tennant) Bridson; Kew Bull. 42(3): 647 (1987)
Distribution: D. R. Congo [Zaire]; Tanzania; Zambia; Malawi
23 ZAI 25 TAN 26 MLW ZAM
Synonyms: hidden
= Canthium fanshawei Tennant; Kew Bull. 22: 438 (1968)
species :
Multidentia kingupirensis Bridson; Kew Bull. 42(3): 649 (1987)
Distribution: Tanzania
25 TAN
species :
Multidentia pobeguinii (Hutch. & Dalziel) Bridson; Kew Bull. 42(3): 646 (1987)
Distribution: Guinea; SW-Mali; S-Burkina Faso; Ivory Coast; Ghana; Togo
22 BKN GHA GUI IVO MLI TOG
Synonyms: hidden
= Canthium pobeguinii Hutch. & Dalziel; Fl. W. Trop. Afr. [Hutchinson & Dalziel] 2: 113. in clavi, 115 (1931)
species :
Multidentia saxicola O.Lachenaud & Séné; Pl. Ecol. Evol. 145(1): 133 (2012)
Distribution: Cameroon; D. R. Congo [Zaire]
23 CMN ZAI
species :
Multidentia sclerocarpa (K.Schum.) Bridson; Kew Bull. 42(3): 650 (1987)
Distribution: Kenya; Tanzania
25 KEN TAN
Synonyms: hidden
= Canthium sclerocarpum (K.Schum.) Bullock; Bull. Misc. Inform. Kew 1932: 375 (1932)
= Plectronia sclerocarpa K.Schum.; Bot. Jahrb. Syst. 34: 334 (1904)
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A complete, synonymic checklist of the Higher Plants of the World


Version 26.08 (August 2nd, 2026)

Covering 360,349 accepted species,
8,927 hybrids, 47,544 accepted infraspecific taxa and 1,011,667 synonyms,
in total 1,428,487* names

[*about 20,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]


With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life