The following new combinations are made: Plectranthus burorum (Chioven
da) J. K. Morton based on Coleus burorum Chiovenda, P. garckeanus (Vat
ke) J. K. Morton based on C. garckeanus Vatke, P. gandicalyx (E. A. Br
uce) J. K. Morton based on C. grandicalyx E. A. Bruce, P. kapatensis (
R. E. Fries) J. K. Morton based on C. kapatensis R. E. Fries, Isodon,
schimperi (Vatke) J. K. Morton based on P. schimperi Vatke, Solenostem
on autrani (Briquet) J. K. Morton based on C. autrani Briquet, and S.
porpeodon (J. G. Baker) J. K. Morton based on P. porpeodon J. G. Baker
. Also two new names are put forward, P. puberulentus J. K. Morton to
replace C. gracilis Gurke and P. pseudobarbatus J. K. Morton to replac
e C. vestitus J. G. Baker. The genus Coleus has been included in Plect
ranthus by most recent workers (e.g., Adams, 1972; Agnew, 1974; Codd,
1975; Brummitt, 1992) following the proposals of the present author (M
orton, 1962). Also Solenostemon, and Isodon are regarded as separate g
enera, distinct from Plectranthus (Morton, 1962; Codd, 1975; Li, 1988;
Ryding, 1992, 1993). As part of a revision of the Ethiopian species i
n this group of genera, several new names and combinations are needed
in order to bring the account into line with current generic concepts.
The following changes are proposed.