Peponidium bakerianum (Drake) Kainulainen & Razafimandimbison, 2016

Kainulainen, Kent & Razafimandimbison, Sylvain G., 2016, New taxonomic combinations in West Indian Ocean Vanguerieae (Rubiaceae), Phytotaxa 282 (4), pp. 267-272 : 269

4. Peponidium bakerianum (Drake) Kainulainen & Razafimandimbison , comb. nov.

Basionym:— Canthium bakerianum Drake (1897: pl. 437).

Type:—” MADAGASCAR ”, without locality (lectotype, Drake, 1897, pl. 437).

Note:—The name Canthium bakerianum Drake (1897: pl. 437) is based solely on the illustration in Drake (1897). According to ICN Article 38.9, the name is validly published and the illustration is the type (Art. 8.1). Notably, “ Canthium bakerianum ” appears to have a glabrous corolla throat, unlike most species of Peponidium , but in habit and leaves it is very similar to a species described from central Madagascar by (the eponymous) John G. Baker, i.e. Peponidium buxifolium (Baker) Razafimandimbison et al. (2007: 517) , which Baker (1885: 411) described as being “glabrous in all parts”. However, the illustrated fruits differ from those of Peponidium buxifolium in that they are distinctly ridged.