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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.
492.6519 Genus Alseis Schott; Syst. Veg., ed. 16 [Sprengel] 4(2), Cur. Post.: 404 (1827)
Distribution: Mexico (2), C- and trop. S-America southward to Peru and Brazil
Species listed in database: 18
species :
Alseis blackiana Hemsl.; Diagn. Pl. Nov. Mexic. 30 (1879)
Distribution: Guatemala; Costa Rica; Panama; Colombia (Antioquia, Bolívar, Caldas, Chocó, Santander)
80 COS GUA PAN 82 CLM
species :
Alseis costaricensis C.M.Taylor; Novon 12(4): 572 (2002)
Distribution: Costa Rica
80 COS
species :
Alseis eggersii Standl.; Publ. Field Mus. Nat. Hist., Bot. Ser. 4: 264 (1929)
Distribution: Ecuador; Peru; N-Brazil (Acre)
83 ECU PER 84 BRA
species :
Alseis floribunda Schott in Spreng.; Syst. Veg., ed. 16 [Sprengel] 4(2), Cur. Post.: 404 (1827)
Distribution: French Guiana; NE-Brazil (Ceará, Bahia, Alagoas, Sergipe); SE-Brazil (Minas Gerais, Espírito Santo, São Paulo, Rio de Janeiro); S-Brazil (Paraná, Santa Catarina)
82 FRG 84 BRA
Synonyms: hidden
= Alseis floribunda var. burchelliana K.Schum.; Fl. Bras. [Martius] 6(6): 189 (1889)
= Alseis floribunda var. selloana K.Schum.; Fl. Bras. [Martius] 6(6): 188 (1889)
= Alseis floribunda var. tomentosa K.Schum.; Fl. Bras. [Martius] 6(6): 188 (1889)
species :
Alseis hondurensis Standl.; Trop. Woods, No. 16: 48 (1928)
Distribution: Mexico (Chiapas, Oaxaca, Veracruz); Guatemala; Belize; Honduras; Costa Rica
79 MEX 80 BLZ COS GUA HON
Synonyms: hidden
= Alseis schippii Lundell; Lloydia 4. 56 (1941)
species :
Alseis involuta K.Schum.; Fl. Bras. [Martius] 6(6): 189 (1889)
Distribution: NE-Brazil (Bahia); SE-Brazil (Espírito Santo, Rio de Janeiro)
84 BRA
Synonyms: hidden
= Alseis gardneri Wernham; J. Bot. 51: 321 (1913)
species :
Alseis labatioides H.Karst. ex K.Schum.; Fl. Bras. [Martius] 6(6): 180 (1889)
Distribution: Colombia (Guaviare); Venezuela (Aragua?, Bolívar, Carabobo, Delta Amacuro, Venezuela Distrito Federal, Falcón, Guárico, Lara?, Miranda, Yaracuy, Zulia?); Guyana; N-Brazil (Acre)
82 CLM GUY VEN 84 BRA
Synonyms: hidden
= Alseis leiantha S.F.Blake; Contr. U.S. Natl. Herb. 20: 531 (1924)
= Alseis trichocarpa Standl. & Steyerm.; Fieldiana, Bot. 28: 566 (1953)
species :
Alseis latifolia Gleason; Phytologia 1: 137 (1935)
Distribution: NE-Brazil (Maranhão, Pernambuco, Bahia, Sergipe); SE-Brazil (Espírito Santo, Rio de Janeiro)
84 BRA
species :
Alseis longifolia Ducke; Arch. Jard. Bot. Rio de Janeiro 3: 256 (1922)
Distribution: Guyana; Surinam; French Guiana; N-Brazil (Roraima, Pará)
82 FRG GUY SUR 84 BRA
Synonyms: hidden
= Alseis longifolia var. pentamera Bremek.; Recueil Trav. Bot. Néerl. 33. 707 (1936)
species :
Alseis lugonis L.Andersson; Fl. Ecuador 50 (162: 1-4): 87 (1994)
Distribution: Ecuador; N-Brazil (Acre)
83 ECU 84 BRA
species :
Alseis microcarpa Standl. & Steyerm.; Fieldiana, Bot. 28: 565 (1953)
Distribution: Colombia (Antioquia); Venezuela (Carabobo, Monagas, Sucre); Peru
82 CLM VEN 83 PER
species :
Alseis mutisii Moldenke; Phytologia 1: 95 (1934)
Distribution: Colombia (Bolívar, Córdoba, La Guajira, Magdalena, Sucre); Venezuela (Falcón, Zulia)
82 CLM VEN
species :
Alseis peruviana Standl.; Publ. Field Mus. Nat. Hist., Bot. Ser. 11: 179 (1936)
Distribution: Peru
83 PER
species :
Alseis pickelii Pilg. & Schmale; Repert. Spec. Nov. Regni Veg. 41: 222 (1937)
Distribution: NE-Brazil (Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Bahia, Alagoas)
84 BRA
species :
Alseis reticulata Pilg. & Schmale; Repert. Spec. Nov. Regni Veg. 41: 223 (1937)
Distribution: Ecuador; Bolivia (Pando); N-Brazil (Amazonas, Acre)
83 BOL ECU 84 BRA
species :
Alseis sertaneja L.Marinho & J.G.Jardim; Kew Bull. 71(4)-53: 2 (2016)
Distribution: Brazil (Bahia, Minas Gerais)
84 BRA
species :
Alseis smithii Standl.; Lloydia 21: 214 (1939)
Distribution: Guyana
82 GUY
species :
Alseis yucatanensis Standl.; Publ. Field Mus. Nat. Hist., Bot. Ser. 8: 50 (1930)
Distribution: Mexico (Campeche, Chiapas, Quintana Roo, Tabasco, Yucatán); Guatemala; Belize
79 MEX 80 BLZ GUA
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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