Dorstenia contrajerva L., 1753

Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 474-489 : 486

Dorstenia contrajerva Linnaeus var. houstonii Linnaeus , Species Plantarum 1: 121. 1753 .

["Habitat in Campechia."] Sp. Pl., ed. 2, 1: 176 (1762). RCN: 993.

Basionym of: Dorstenia alexiteria L. (1755) ; Dorstenia houstonii (L.) L. (1762) , nom. illeg.

Type not designated.

Original material: [icon] in Houstoun in Philos. Trans. 37(421): 196, f. 2. 1733.

Current name: Dorstenia contrajerva L. ( Moraceae ).

Note: Varietal epithet spelled “houstoni” in the protologue. Although Berg (in Harling & Andersson, Fl. Ecuador 60: 116. 1998; Fl. Neotropica 83: 198. 2001) indicated Houstoun s.n. (BM) as the holotype, it is most unlikely that Linnaeus could have seen this material and, with the existence of a cited illustration as original material, the Houstoun collection cannot serve as a neotype.