Coleus sylvestris (Gürke) A. J. Paton & Phillipson, Phytokeys 129: 103. 2019. ≡ Plectranthus sylvestris Gürke, Bot. Jahrb. Syst. 19: 205. 1894. Type: Tanzania, Kilimanjaro, Rifinika Hill on Mawenzi, 14 Sep 1893, G. Volkens 965 (holotype B destroyed; isotype BM [BM 000999974], G). = Coleus ferrugineus Robyns, Bull. Jard. Bot. État Bruxelles 17: 77. 1943. Type: DR. Congo, Karisimbi, Feb 1932, J. Lebrun 5005 (holotype BR [BR 0000006262617]; isotype K). = Plectranthus ferrugineus (Robyns) Troupin & Ayob., Fl. Rwanda 3: 336. 1985., nom. inval. = Coleus subulatus Robyns, Bull. Jard. Bot. État Bruxelles 17: 76. 1943. Type: DR. Congo, Kivu, Tschamugussa. 13 Aug 1934, G. F. de Witte 1854 (holotype BR [BR 0000006262952]; isotype LWI). Description. Paton et al. (2009: 295), Paton et al. (2013: 243), as Plectranthus sylvestris Gürke. Distribution. Tropical Africa, Madagascar. Habitat and ecology. Mountain evergreen forest, often with Hagenia and bamboo; 2300–3400 m elev. Additional specimens. DR. Congo, Lacs Edouard et Kivu, Karisimbi, vallée Visoke, 22 Jan 1955, G. F. de Witte 11568 (BR); Kabara, Mikeno, 16 Jul 1934, G. F. de Witte 1777 (BR, LWI); Mont Muhi, Jun 1948, F. L. Hendrickx 5273 (BR); Mont Bukulumiza, 26 Jul 1955, R. Pierlot 666 (BR); Haut-Katanga, Marungu, Ndawa, Apr 1944, L. Dubois 1165 (BR). Rwanda, Forêt de Nyungwe, vers km 100, 21 Aug 1969, G. Bouxin & M. Radoux 716 (BR); Kareba, 10 Oct 1974, P. Auquier 4514 (BR); Karisimbi, versant Sud, 27 Feb 1935, G. F. de Witte 2255 (BR); Karisoke, 3 Jan 2006, Luksenberg & A. Nsanzurwimo s. n. (BR). Burundi, Bukeye, Teza, 19 Jun 1971, J. Lewalle 6024 (BR); Muramvya, bois sacré de Mpotsa, 9 Jun 1979, M. Reekmans 8245 (BR, WAG).

Published as part of Meerts, Pierre J. & Paton, Alan J., 2024, The genus Coleus (Lamiaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi), with the description of 15 new species, pp. 71-178 in PhytoKeys 246 on pages 71-178, DOI: 10.3897/phytokeys.246.129476