What is "anthostema"

Anthostema is a flowering plant genus in the Family Euphorbiaceae (Spurge family) first described as a genus in 1824. It is native to Africa and Madagascar.

1. Anthostema aubryanum Baill. - W + C Africa from Ivory Coast to Cabinda
2. Anthostema madagascariense Baill. - Madagascar
3. Anthostema senegalense A.Juss. - W Africa from Senegal to Benin