Mesembryanthemum calycinum Haw., Saxifrag. Enum. 2: 187. 1821
Mesembryanthemum calycinum, Saxifrag. Enum. 2: 187. 1821
is basionym for Drosanthemum calycinum in Z. Sukkulentenk. 3: 29. 1927
is basionym for Sphalmanthus calycinus in S. African Gard. 17: 398. 1927