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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.
492.2208 Genus Squamellaria Becc.; Malesia 2: 228 (1886)
Distribution: Fiji, Solomons, Vanuatu (1). To be included in an expanded Psychotria s. l., but the formal transfer has not yet been done.
Species listed in database: 11
species :
Squamellaria grayi Chomicki & Wistuba; PLoS ONE 11(3): e0151317 (8) (2016)
Distribution: Fiji
60 FIJ
species :
Squamellaria guppyana (Becc.) Chomicki; PLoS ONE 11(3): e0151317 (20) (2016)
Distribution: Solomon Isl.
43 SOL
Synonyms: hidden
= Hydnophytum guppyanum Becc.; Malesia 2: 129, 133 (1885)
= Hydnophytum hahlii Rech.; Repert. Spec. Nov. Regni Veg. 11: 186 (1912)
species :
Squamellaria huxleyana Chomicki; PLoS ONE 11(3): e0151317 (12) (2016)
Distribution: Fiji
60 FIJ
species :
Squamellaria imberbis Becc.; Malesia 2: 228 t. 46. fig. 1-12 (1886)
Distribution: Fiji
60 FIJ
Synonyms: hidden
= Hydnophytum wilsoni Horne ex Baker; J. Linn. Soc., Bot. 20: 365 (1884)
= Myrmecodia imberbis A.Gray; Proc. Amer. Acad. Arts 4: 42 (1860)
= Myrmecodia inermis Benth. & Hook.f.; Gen. Pl. [Bentham & Hooker f.] 2: 132 (1873), in nota
= Squamellaria wilsonii Becc.; Malesia 2: 229, t. 46. fig. 13-24 (1886)
species :
Squamellaria jebbiana Chomicki; PLoS ONE 11(3): e0151317 (14) (2016)
Distribution: Fiji
60 FIJ
species :
Squamellaria kajewskii (Merr. & L.M.Perry) Chomicki; PLoS ONE 11(3): e0151317 (20) (2016)
Distribution: Bougainville
43 SOL
Synonyms: hidden
= Hydnophytum kajewskii Merr. & L.M.Perry; J. Arnold Arbor. 26: 25 (1945)
species :
Squamellaria major A.C.Sm.; Contr. U.S. Natl. Herb. 37: 90 (1967)
Distribution: Fiji
60 FIJ
species :
Squamellaria tenuiflora (Becc.) Chomicki; PLoS ONE 11(3): e0151317 (20) (2016)
Distribution: Fiji; Palau
60 FIJ 62 PLU
Synonyms: hidden
= Hydnophytum grandiflorum Becc.; Malesia 2: 126 (1884), 171 (1885)
= Hydnophytum horneanum Becc.; Malesia 2: 125 168 (1884 publ. 1885)
= Hydnophytum longiflorum A.Gray; Proc. Amer. Acad. Arts 4: 42 (1860)
= Hydnophytum tenuiflorum Becc.; Malesia 2: 125 (1884), 169 (1885)
= Myrmecodia vitiensis Seem.; Bonplandia (Hannover) 9: 256 (1861), nomen
species :
Squamellaria thekii Jebb; Blumea 36(1): 59 (1991)
Distribution: Fiji
60 FIJ
species :
Squamellaria vanuatuensis Jebb & C.R.Huxley ex Chomicki & S.S.Renner; PLoS ONE 11(3): e0151317 (17) (2016)
Distribution: Vanuatu
60 VAN
species :
Squamellaria wilkinsonii (Horne ex Baker) Chomicki; PLoS ONE 11(3): e0151317 (20) (2016)
Distribution: Fiji
60 FIJ
Remarks: possibly a synonym of S. tenuiflora
Synonyms: hidden
= Hydnophytum wilkinsoni Horne ex Baker; J. Linn. Soc., Bot. 20: 365 (1884)
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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