Mesembryanthemum expansum Linnaeus, Systema Naturae, ed. 10, 2: 1059. 1759.
["Habitat ad Cap. b. spei."] Sp. Pl., ed. 2, 1: 697 (1762). RCN: 3675.
Lectotype (designated here by Hartmann): [icon] " Mesembryanthemum tortuosum, foliis Sempervivi expansis " in Dillenius, Hort. Eltham. 2: 234, t. 182, f. 223. 1732.
Current name: Sceletium expansum (L.) L. Bolus ( Aizoaceae).
Note: Gerbaulet (in Hartmann, Ill. Handb. Succ. Pl., Aizoaceae F–Z: 289. 2001) indicated material in K (ex Herb. Dillenius, OXF) as lectotype but this was not studied by Linnaeus and is not original material for the name.