Crioceras is a plant genus in the family Apocynaceae first described as a species in 1897. It contains only one known species, Crioceras dipladeniiflorus, native to tropical central Africa (Gabon, Republic of Congo, and the Angolan province of Cabinda).Kew World Checklist of Selected Plant FamiliesSosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon. Scripta Botanica Belgica 35: 1-438.Figueiredo, E. & Smith, G.F. (2008). Plants of Angola. Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
The type species is Crioceras longiflorus (syn of C. dipladeniiflorus) described by Jean Baptiste Louis Pierre.
An alkaloid present in Crioceras longiflorus is called 12-Methoxyvoaphylline. References