Chapter 7: Linnaean Plant Names and their Types (part M) Author Jarvis, Charlie Department of Botany, Natural History Museum, Cromwell Road, London, UK text 2007 Linnaean Society of London in association with the Natural History Museum London Order out of Chaos. Linnaean Plant Types and their Types 651 689 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 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.