Geissospermum is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1846. It is native to South America.Kew World Checklist of Selected Plant FamiliesHokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
Species Geissospermum argenteum Woodson - Venezuela, the Guianas Geissospermum fuscum Markgr - S Venezuela, NW Brazil Geissospermum laeve (Vell.) Miers - N + E Brazil, the Guianas Geissospermum reticulatum A.H.Gentry - S Venezuela, Peru, N Bolivia Geissospermum sericeum Miers - Guyana, Suriname, French Guiana Geissospermum urceolatum A.H.Gentry - NW Brazil
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