Chaptalia hermogenis (Asteraceae : Mutisieae), a new species from the Brazilian Atlantic Rain Forest

Chaptalia hermogenis (sect. Archichaptalia), currently known only from a montane forest in the Atlantic Rain Forest region of southeastern Brazil, is described and illustrated. The new species is compared with the closely similar C. cordifolia (Baker) Cabrera. It is distinguished by a long involucre, the long expanded limb with an inner linear lip of the female florets, the absence of tubular-filiform internal female florets, a character rare in the genus, and a sparsely pubescent achene.8217317