Morphological and molecular identification of four new resupinate species of (Hymenochaetales) from southern China.

Four new wood-inhabiting fungal species, , , and , are proposed based on a combination of morphological and molecular evidence. is characterized by resupinate basidiomata with colliculose to tuberculate hymenial surface and broadly ellipsoid, hyaline, slightly thick-walled, smooth basidiospores. is characterised by resupinate basidiomata with smooth, cream hymenial surface and ellipsoid, hyaline, thin-walled to slightly thick-walled basidiospores. is characterized by pruinose basidiomata with reticulate hymenial surface, presence of three kinds of cystidia and larger basidiospores (6.7-8.9 × 4.4-5.4 µm). is characterized by coriaceous basidiomata and ellipsoid, hyaline, slightly thick-walled, smooth basidiospores. The phylogenetic analyses based on molecular data of the internal transcribed spacer (ITS) region sequences revealed that the four new species belonged to . grouped with . clade was sister to a clade comprised of . was sister to . was closely related to .