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496.0000 Family Apocynaceae Juss.; Gen. Pl. [Jussieu] 143 (1789), nom. cons.
372 genera, ca. 6500 spp. According to modern authors and PCR Asclepiadaceae is only a subfamily of Apocynaceae.
Species listed in database: 6774; hybrids: 10
= Asclepiadaceae Borkh.; Bot. Wörterb. 1: 31 (1797), nom. cons.
= Carissaceae Bertol; Nuovo Giorn. Bot. Ital. 23: 212 (1891)
= Cerberaceae Martinov; Tekhno-Bot. Slovar 119 (1820)
= Cynanchaceae G.Mey.; Chloris Han. 245, 251 (1836)
= Ophioxylaceae Mart.; Consp. Regn. Veg. [Martius] 24 (1835)
= Pacouriaceae Martinov; Tekhno-Bot. Slovar 447 (1820)
= Periplocaceae Schltr.; Nachtr. Fl. Schutzgeb. Südsee [Schumann & Lauterbach] 351 (1905), nom. cons.
= Plumeriaceae Horan.; Prim. Lin. Syst. Nat. 70 (1834)
= Stapeliaceae Horan.; Prim. Lin. Syst. Nat. 70 (1834)
= Vincaceae Vest; Anleit. Stud. Bot. 273, 299 (1818)
= Willughbeaceae J.Agardh; Theoria Syst. Pl. 256 (1858)
496.6594 Genus Petalostelma E.Fourn.; Fl. Bras. [Martius] 6(4): 328 (1885)
Distribution: South America
Species listed in database: 12
= Lagoa T.Durand; Index Gen. Phan. [Durand] 260 (1887)
= Zygostelma E.Fourn.; Fl. Bras. [Martius] 6(4): 232 (1885), nom. illeg., non Benth. 1876
species :
Petalostelma andinum Meve, Liede & A.P.B.Santos; Willdenowia 49(3): 286 (2019)
Distribution: Bolivia; Argentina (Tucumán, Salta)
83 BOL 85 ARG
species :
Petalostelma atlanticum A.P.B.Santos; Pl. Syst. Evol. 307(2)-27: 8 (2021)
Distribution: Brazil (Espírito Santo)
84 BRA
species :
Petalostelma auriculatum A.P.B.Santos & Meve; Willdenowia 49(3): 288 (2019)
Distribution: Bolivia
83 BOL
species :
Petalostelma bracteolatum (E.Fourn.) Fontella; Pabstia 5(1): 6 (1994)
Distribution: N-Brazil (Tocantins); NE-Brazil (Bahia); WC-Brazil (Goiás, Brasilia Distrito Federal); SE-Brazil (Espírito Santo)
84 BRA
Synonyms: hidden
= Metastelma bracteolatum E.Fourn.; Fl. Bras. [Martius] 6(4): 209 (1885)
species :
Petalostelma calcaratum (Decne.) Fontella; Pabstia 5(1): 6 (1994)
Distribution: WC-Brazil (Brasilia Distrito Federal); SE-Brazil (Minas Gerais, Rio de Janeiro)
84 BRA
Synonyms: hidden
= Lagoa calcarata (Decne.) Baill.; Hist. Pl. [Baillon] 10: 251 (1890)
= Lagoa calcarata (Decne.) Schum.; Nat. Pflanzenfam. [Engler & Prantl] IV, 2: 257 (1895), isonym
= Metastelma calcaratum Decne.; Prodr. [A.P. de Candolle] 8: 513 (1844)
= Zygostelma calcaratum (Decne.) E.Fourn.; Fl. Bras. [Martius] 6(4): 232 (1885))
species :
Petalostelma cearense Malme; Ark. Bot. 21A(2): 4 (1927)
Distribution: NE-Brazil (Maranhão, Ceará)
84 BRA
species :
Petalostelma dardanoi Fontella; Pabstia 5(1): 5 (1994)
Distribution: NE-Brazil (Paraíba, Pernambuco)
84 BRA
species :
Petalostelma garrapatense H.A.Keller; Darwiniana, n. s. 11(1): 358 (2023)
Distribution: Argentina (Salta)
85 ARG
species :
Petalostelma longipedunculatum A.P.B.Santos; Willdenowia 49(3): 290 (2019)
Distribution: Bolivia; Brazil (Mato Grosso)
83 BOL 84 BRA
species :
Petalostelma martianum (Decne.) E.Fourn.; Fl. Bras. [Martius] 6(4): 328 (1885)
Distribution: Bolivia (Santa Cruz); NE-Brazil (Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Bahia, Alagoas, Sergipe); WC-Brazil (Goiás); SE-Brazil (Minas Gerais)
83 BOL 84 BRA
Synonyms: hidden
= Metastelma martianum Decne.; Prodr. [A.P. de Candolle] 8: 513 (1844)
species :
Petalostelma robertii (S.Moore) Liede & Meve; Novon 11(2): 176 (2001)
Distribution: Bolivia (Chuquisaca, Santa Cruz); WC-Brazil (Mato Grosso do Sul); Paraguay (Alto Paraguay)
83 BOL 84 BRA 85 PAR
Synonyms: hidden
= Cynanchum robertii (S.Moore) Malme; Ark. Bot. 26A(4): 28 (1934)
= Metastelma robertii (S.Moore) Malme; Ark. Bot. 21A(12): 7 (1927)
= Vincetoxicum robertii S.Moore; J. Bot. 42: 104 (1904)
species :
Petalostelma sarcostemma (Lillo) Liede & Meve; Novon 11(2): 176 (2001)
Distribution: Bolivia (Beni, Cochabamba, La Paz, Santa Cruz, Tarija); Argentina (Salta, Tucumán)
83 BOL 85 ARG
Synonyms: hidden
= Cynanchum sarcostemma Lillo; Physis (Buenos Aires) 4: 424 (1919), et ex Malme, Ark. Bot. 26A(4): 27 (1934), descr. ampl.
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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