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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.
492.5912 Genus Isidorea A.Rich. ex DC.; Prodr. [A.P. de Candolle] 4: 405 (1830), et A. Rich., Mém. Soc. Hist. Nat. Paris 5: 284 (1834)
Distribution: Caribbean
Species listed in database: 17
species :
Isidorea acunae (Borhidi) Borhidi; Acta Bot. Acad. Sci. Hung. 26: 266 (1980)
Distribution: Cuba
81 CUB
Synonyms: hidden
= Portlandia acunae Borhidi; Növenyrendsz. Novényföldr. Tansz., Eötvös Loránd Tudományegyet. Budapest 5: 35 (1977)
species :
Isidorea brachyantha Urb.; Ark. Bot. 17(7): 57 (1922)
Distribution: Haiti
81 HIS
species :
Isidorea brachycarpa (Urb.) Aiello; J. Arnold Arbor. 60: 114 (1979)
Distribution: Cuba
81 CUB
Synonyms: hidden
= Portlandia brachycarpa Urb.; Symb. Antill. [Urban] 9: 135 (1923)
species :
Isidorea elliptica Alain; Contr. Ocas. Mus. Hist. Nat. Colegio De La Salle 17: 4 (1959)
Distribution: Cuba
81 CUB
species :
Isidorea gonavensis Aiello & Borhidi; Acta Bot. Hung. 32: 221 (1986)
Distribution: Hispaniola (Haiti)
81 HIS
species :
Isidorea leonardii Urb.; Repert. Spec. Nov. Regni Veg. 19: 8 (1923)
Distribution: Hispaniola (Haiti)
81 HIS
species :
Isidorea leonis Alain; Contr. Ocas. Mus. Hist. Nat. Colegio De La Salle 17: 5 (1959)
Distribution: Cuba
81 CUB
species :
Isidorea leptantha Urb.; Symb. Antill. [Urban] 7: 391 (1912)
Name: Palo de cruz (Dominican Republic)
Distribution: Hispaniola (Dominican Republic)
81 HIS
species :
Isidorea microphylla Borhidi; Acta Bot. Acad. Sci. Hung. 26: 268 (1980)
Distribution: Cuba
81 CUB
species :
Isidorea oblanceolata (Urb.) Aiello; J. Arnold Arbor. 60: 115 (1979)
Distribution: Cuba
81 CUB
Synonyms: hidden
= Portlandia oblanceolata Urb.; Symb. Antill. [Urban] 9: 136 (1923)
species :
Isidorea ophiticola (Borhidi) Borhidi; Acta Bot. Acad. Sci. Hung. 26: 267 (1980 publ.1981)
Distribution: Cuba
81 CUB
Synonyms: hidden
= Portlandia ophiticola Borhidi; Növenyrendsz. Novényföldr. Tansz., Eötvös Loránd Tudományegyet. Budapest 5: 34 (1977)
species :
Isidorea pedicellaris Urb. & Ekman; Ark. Bot. 21A(5): 65 (1927)
Distribution: Haiti
81 HIS
species :
Isidorea polyneura (Urb.) Aiello; J. Arnold Arbor. 60: 115 (1979)
Distribution: Cuba
81 CUB
Conservation Status: vulnerable (Red List of the Vascular Flora of Cuba)
Synonyms: hidden
= Portlandia polyneura Urb.; Symb. Antill. [Urban] 9: 135 (1923)
species :
Isidorea pungens (Lam.) B.L.Rob.; Proc. Amer. Acad. Arts 45: 401 (1910)
Name: Encinillo, Palo de cruz, Yaya (Dominican Republic)
Distribution: Dominican Republic
81 HIS
Synonyms: hidden
= Ernodea pedunculata Poir.; Encycl. [J.Lamarck et al.], Suppl. 2: 581 (1811)
= Ernodea pungens Lam.; Encycl. [J.Lamarck et al.] 1: 276 (1791)
= Isidorea amoena A.Rich. ex DC.; Prodr. [A.P. de Candolle] 4: 406 (1830)
species :
Isidorea rheedioides Borhidi; Növenyrendsz. Novényföldr. Tansz., Eötvös Loránd Tudományegyet. Budapest 5: 37 (1977)
Distribution: Cuba
81 CUB
Conservation Status: vulnerable (Red List of the Vascular Flora of Cuba)
species :
Isidorea tetramera Urb. & Ekman; Ark. Bot. 21A(5): 66 (1927)
Distribution: Hispaniola
81 HIS
species :
Isidorea veris Ekman ex Aiello & Borhidi; Acta Bot. Hung. 32: 222 (1986)
Distribution: Hispaniola (Dominican Republic)
81 HIS
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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