What is "chlorocyathus"

'Chlorocyathus ' is a genus of plants in the Apocynaceae, first described in 1887. It is native to southern Africa.

1. Chlorocyathus lobulata (Venter & R.L.Verh.) Venter - Bathurst District in Cape Province of South Africa
2. Chlorocyathus monteiroae Oliv. - Maputo Bay (formerly Delagoa Bay) in southern Mozambique

moved to Raphionacme

• Chlorocyathus welwitschii (Schltr. & Rendle) Bullock, synonym of Raphionacme welwitschii Schltr. & Rendle