Morphological and Phylogenetic Evidence for Recognition of Two New Species of from East Asia.

Two new corticioid fungal species, and spp. nov. are proposed based on a combination of morphological features and molecular evidence. is characterized by the resupinate basidiomata with the pruinose hymenial surface, a monomitic hyphal system with simple-septate generative hyphae and subcylindrical basidiospores measuring as 3.5-6.7 × 1.5-2.7 µm. is characterized by having a smooth hymenophore covered by orange hymenial surface, the presence of rhizomorphs, subulate cystidia, and narrower ellipsoid to ellipsoid basidiospores. Sequences of ITS+nLSU nrRNA gene regions of the studied specimens were generated and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. These phylogenetic analyses showed that two new species clustered into genus , in which was sister to with high supports (100% BS, 100% BT, 1.00 BPP); morphologically differing by a pale orange to greyish orange and densely cracked hymenial surface. Another species was closely grouped with with lower supports; morphologically having yellow to reddish yellow hymenial surface, and smaller cystidia measuring as 31-48 × 2.3-4.8 µm.