Morphological plasticity in brown-rot fungi: Antrodiais redefined to encompass both poroid and corticioid species

ABSTRACTMost known brown rot–producing species of Polyporales belong to the so-called “Antrodia clade” that largely consists of poroid species. In this study, we use three genetic markers to revise Antrodias. str., the core group of this clade. We show that a corticioid species with a smooth hymenophore, Phlebia griseoflavescens, belongs to Antrodias. str. Accordingly, we revise the generic concept of Antrodias. str. to accommodate this species and two recently described poroid taxa, A. tenerifensisand A. multiformis. In addition, we describe two new poroid species within Antrodias. str., A. latebrosafrom Africa and A. peregrinafrom East Asia, and provide new documentation for the Southeast Asian species A. parvulabased on recent collections from the type location.