Coleus prittwitzii A. J. Paton

Coleus prittwitzii (Perkins) A. J. Paton, Phytokeys 129: 86. 2019. ≡ Pycnostachys prittwitzii Perkins, Notizbl. Bot. Gart. Berlin-Dahlem 8: 68. 1921. Type: Tanzania, Iringa District, Ndembera flood plain, near Gominyi, 2 Aug 1901, G. von Prittwitz 28 (holotype B destroyed; isotype K [K 000405965] fragment). Description. Paton et al. (2009: 398), Paton et al. (2013: 324), as Pycnostachys prittwitzii Perkins. Distribution. SW Tanzania to N Zambia. Habitat and ecology. Savannah on moist soil; ca. 1200 m elev. Additional specimens. Burundi, Mutara, Mosso, 12 Aug 1952, G. Michel 3686 (BR, K); Kiofi, Mosso, 16 Sep 1952, G. Michel 3907 (BR). Note. The two cited specimens differ from other materials of C. prittwitzii in having opposite (not ternate), broader, leaves and shorter inflorescence; they could represent a different taxon.