Coleus seretii De Wild., Bol. Soc. Ibér. Ci. Nat. 19: 122. 1920.

≡ Plectranthus seretii (De Wild.) Vollesen, Opera Bot. 59: 84. 1980. Type: DR. Congo, route Buta – Bima (Bali), 13 Oct 1905, F. Seret 68 (lectotype BR [BR 0000006262600], designated here).

Description.

Paton et al. (2009: 313), as Plectranthus seretii (De Wild.) Vollesen.

Distribution.

Ethiopia, DR. Congo, Tanzania, NW. Madagascar.

Habitat and еcology.

Secondary forest, road verge; 450–600 m elev.

Additional specimens.

DR. Congo, Bas-Katanga, Kasongo, Mobanga, 18 Jun 1952, R. Germain 7695 (BR); Forestier Central, Route Benalia-Buta, 1 Nov 1945, R. Germain 4267 (BR); Route Buta-Banalia, km 38, 23 May 1976, S. Lisowski 42922 (POZG); Entre Buta et Lekada, 9 Jan 1926, W. Robyns 1320 (BR).

Note.

Lectotypification of Coleus seretii De Wild. De Wildeman (1920) cites two syntypes (F. Seret 68 & 420 (erroneously cited as “ 120 ” in the protologue), both matching the protologue; F. Seret 68 (sheet [BR 0000006262600] is selected here as the lectotype because it has better preserved leaves. Remaining syntype: F. Seret 420 (syntype BR; isosyntype K), Suronga Forest, 26 Dec 1905.