New species in Drosanthemum (Aizoaceae: Ruschioideae)

Following molecular and morphological study, four new species in Drosanthemum, belonging to the subgenera Drosanthemum, Necopina, and Speciosa, are described: D. nollothense, D. obibense, D. ecclesianum and D. brak-fonteinense. In subgenus Quastea, a cryptic species imitating D. cymiferum is identified and discussed, but not formally described.