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932 gentians, dogbanes, madders, and allies species
Rauvolfia sumatrana
Halenia corniculata
Gonolobus taylorianus
Gynochthodes trimera
Gentiana paradoxa
Kadua flynnii
Acokanthera schimperi
Dischidia imbricata
Ochrosia nakaiana
Pteralyxia laurifolia
Spigelia alabamensis
Canthium monstrosum
Gentianella punicea
Arcytophyllum fasciculatum
Wrightia coccinea
Kadua littoralis
Hoya purpureofusca
Exostema lineatum
Galium brandegeei
Houstonia teretifolia
Galium californicum
Galium porrigens
Stapelia gigantea
Galium andrewsii
Galium humifusum
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