Coleus guerkei (Briq.) A. J. Paton, Phytokeys 129: 53. 2019. Type. Angola, Cuito (Kuito), 1 Apr 1900. H. Baum 789 (holotype B destroyed; isotype E [E 00193514], G [G 00435305], HBG [HBG 518375], K, M [M 0104725], S [S-G- 3335], W [W 1901-0009329]). Description. Paton et al. (2009: 317), Paton et al. (2013: 259), as Plectranthus guerkei Briq. Distribution. Widespread in Tropical & South Africa. Habitat and ecology. Savannah on moist soil, marshland; 100–1800 m elev. Additional specimens. DR. Congo, Mayumbe, Gimbi, 17 Jun 1948, Laurent 713 (BR); Bas-Congo, Ntadi, 21 Apr 1944, R. Germain 2140 (BR); Kisantu, 1900, J. Gillet 1337 (BR); Kibotuka, 2 Sep 1975, N’Kunga 5429 (BR); Kasaï, Gombe ya Tumba, 16 Apr 1953, H. Callens 1274 (BR); Kananga, 24 Nov 1981, S. Lisowski 66927 (BR); Kapanga, Jun 1933, F. Overlaet 923 (BR); Panzi, 1925, H. Vanderyst 16001 (BR); Bas-Katanga, Gandajika, 12 Oct 1956, L. Liben 1705 (BR); Katumanga, 29 Oct 1956, L. Liben 1811 (BR); Ubangi-Uele, Gangala na Bodi, 21 Nov 1942, C. Cornet d’Elzius et al. 373 (BR); Faradje, 28 Dec 1949, Costermans 62 (BR); Garamba, piste centrale vers km 82, 18 Feb 1952, G. Troupin 65 (BR); Lac Albert, Irumu, 9 Mar 1914, J. Bequaert 2844 (BR); Kerekere, 19 Jan 1960, D. Froment 649 (BR); Haut-Katanga, Dilolo, riv. Mangoa, 20 Aug 1956, P. Duvigneaud & J. Timperman 2410 (BRLU); Baudouinville [Moba], 5 May 1926, W. Robyns 2241 (BR). Rwanda, Agatete, 19 Nov 1953, L. Liben 963 (BR). Burundi, Musumba Mosso, 10 Jun 1952, G. Michel 2674 (BR); Mosso, Ruyigi, 4 Sep 1951, G. Michel & J. Reed 178 (BR); Route Rusengo-Cankuso, km 5, 16 May 1978, M. Reekmans 7003 (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