Coleus alpinus Vatke

Coleus alpinus Vatke, Linnaea 37: 322. 1872. ≡ Plectranthus alpinus (Vatke) Ryding, Bot. Jahrb. Syst. 121: 147. 1999. Type: Ethiopia, Amara, Edda Jesus near Dawra Tabor [Debra Tabor], 25 Sep 1863, G. W. Schimper s. n. (lectotype BM [BM 000513299], designated by Ryding (1999 b); isolectotype JE, US, W). = Coleus assurgens Baker in D. Oliver & auct. suc. (eds.), Fl. Trop. Afr. 5: 428. 1900. ≡ Plectranthus assurgens (Baker) J. K. Morton, J. Linn. Soc., Bot. 58: 267. 1962. Type: Ethiopia, Begemder, Aug 1863. G. W. Schimper s. n. (holotype K [K 000431867]). = Coleus lebrunii Robyns, Bull. Jard. Bot. État Bruxelles 17: 73. 1943. Type: DR. Congo, Ruwenzori, Butagu Valley, Nov 1931. J. Lebrun 4579 (holotype BR [BR 0000008910035], [BR 0000006262631]; isotype K [K 000431884]). = Coleus wittei Robyns Bull. Jard. Bot. État Bruxelles 17: 74. 1943. Type: DR. Congo, Kamatembe, R. Bishkishaki, 16 Apr 1934. G. F. de Witte 1551 (holotype BR [BR 0000006262914], [BR 0000006262631]). Description. Paton et al. (2009: 296), Paton et al. (2013: 245), as Plectranthus alpinus (Vatke) Ryding. Distribution. Nigeria to Ethiopia and south to Malawi. Habitat and ecology. Savannah, river banks, marshland, mountain forest, Erica shrubland, fallow fields, 1300–2700 m elev. Additional specimens. DR. Congo, Lacs Edouard et Kivu, Ruwenzori, Lamia, 14 May 1914, J. Bequaert 4262 (BR); Ruwenzori, 20 Dec 1949, de Wilde 439 (BR); Masisi, Bohenda, 7 May 1957, R. Gutzwiller 904 (BR); Kabare, Birava, 20 Aug 1959, Meurillon 791; Lwiro, marais Lushala, 14 Jun 1958, G. Troupin 7495 (BR); Nyamuragira, N-hang, 21 Aug 1954, H. U. Stauffer 106 (BR). Rwanda, Entre Mutura et Kanama, 14 Jun 1984, J. Lejoly 84 / 353 (BRLU); Préfecture Gisenyi, route Muramba-Rutsiro, Ramba, 14 Jun 1974, C. Nuyt 292 (BR); Gisovu, 15 Jun 1978, J. Raynal 20580 (BR); Rangiro, Kirambo, 4 Jun 1981, G. Troupin 16268 (BR); R. Mukungwa, waterfalls near Rwaza, 23 Feb 1972, P. Van der Veken 9510 (BR). Burundi, Nkaka, 1 Mar 2003, E. Bizuru 728 (BRLU). Note. New species record for Burundi.