Acanthocoleus elgonensis Gyarmati et Pócs, sp. nov. from Mount Elgon (Uganda)

A new Acanthocoleus R.M. Schust. species is described from the afroalpine belt of Mount Elgon, Uganda. Acanthocoleus elgonensis Gyarmati et Pócs is distinguished from the related A. madagascariensis (Steph.) Kruijt by stem, leaf lobule and underleaf structure, pigmentation of cell walls and finally by the shape of female bracts.