Antrodia neotropica sp. nov. (Polyporales, Basidiomycota): a new South American species of Antrodia s.s. from Brazil based on morphological, molecular and ecological data

Abstract

During the revision of the Antrodia species from the Atlantic Forest in southern Brazil,some specimens collected on dead branches of Baccharis (Asteraceae) were found to represent anundescribed species, Antrodia neotropica sp. nov. Morphologically, this new species is characterizedby resupinate to effused-reflexed basidiomata with a cream to brown pore surface, a dimitic hyphalsystem and basidiospores that are cylindrical to subcylindrical, in dorsi-ventral view with an obovoidaspect, and from the side-view present a sigmoid ventral side. Molecular phylogeny inferred fromnrITS and nrLSU sequence data confirmed that this species belongs to the Antrodia s.s. clade, closelyrelated to European and North American species, A. serpens and A. heteromorpha. Its relationshipswithin Antrodia s.s. as well as biological and morphological characters of Antrodia s.s. are discussed