Coleus tetragonus ( Guerke ) Robyns & Lebrun, Ann. Soc. Sci. Bruxelles, Ser . B 49: 106. 1929

Paton, Alan J., Mwanyambo, Montfort, Govaerts, Rafael H. A., Smitha, Kokkaraniyil, Suddee, Somran, Phillipson, Peter B., Wilson, Trevor C., Forster, Paul I. & Culham, Alastair, 2019, Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): a tale of more than two genera, PhytoKeys 129, pp. 1-158 : 92-93

Coleus tetragonus ( Guerke) Robyns & Lebrun, Ann. Soc. Sci. Bruxelles, Ser. B 49: 106. 1929

Plectranthus tetragonus Gürke, Bot. Jahrb. Syst. 19: 209. 1894.

Englerastrum tetragonum ( Gürke) T.C.E.Fr., Notizbl. Bot. Gart. Berlin-Dahlem 9: 73. 1924. Type: Tanzania, Lushoto District: Usambara Mts, Mashewa (Mascheua), Holst 3573 (holotype: B, destroyed; isotype: K, W, Z).

Plectranthus melanocarpus Gürke, Bot. Jahrb. Syst. 19: 210. 1894.

Englerastrum melanocarpum ( Gürke) T.C.E.Fr., Notizbl. Bot. Gart. Berlin-Dahlem 9: 71. 1924.

Coleus melanocarpus ( Gürke) Robyns & Lebrun, Ann. Soc. Sci. Bruxelles, Sér. B 49: 106. 1929. Type: Tanzania, Masai steppe, Fischer 511 (holotype: B, destroyed; isotype: K, fragment).

Plectranthus biflorus Baker in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 5: 402. 1900.

Englerastrum biflorum (Baker) T.C.E.Fr., Notizbl. Bot. Gart. Berlin-Dahlem 9: 73. 1924. Type: Malawi, between Khondowe and Karonga, Whyte s.n. (holotype: K).

Plectranthus dekindtianus De Wild., Ann. Mus. Congo Belge, Bot., sér. 4, 2: 135. 1913. Type: DRC, Bugege, Hock s.n. (holotype: BR).

Distribution.

Kenya to South Africa.