Two new Clitocella species from North China revealed by phylogenetic analyses and morphological characters

Two new species of Clitocella are proposed based on morphological and phylogenetic investigations. Clitocella borealichinensis sp. nov. is closely related to C. orientalis but distinguished from the latter by its slightly smaller basidiospores and hyphae of pileipellis with pale brown to brown intracellular or parietal pigment. Clitocella colorata sp. nov. is closely related to C. popinalis and C. mundula in macromorphology but is differentiated from C. popinalis by its slightly smaller basidiospores and the difference in genetic profile, and from C. mundula by its relatively colorful pileus (white to yellowish white, grayish white to grayish brown, pink white). Phylogenetic analyses based on sequence data from five different loci (ITS, nrLSU, tef1, rpb2 and atp6) support the taxonomic position of the two new species in the genus Clitocella. The illustrations and descriptions for the new taxa are provided.