Taxonomy and phylogeny of Dacrymyces (Dacrymycetales, Basidiomycota) with descriptions of a new species from China.

A new jelly fungus, Dacrymyces abaensis sp. nov., is described from the subalpine coniferous forests of Sichuan, China, based on morphology and ITS+nLSU phylogeny. The species grows on rotten wood of Picea and forms a distinct lineage within Dacrymyces. It is characterized by sessile, cerebriform, orange-yellow gelatinous basidiomata; subclavate probasidia (109-120 × 5.5-9 μm) that become bifurcate at maturity; clavate, thin-walled hyphidia (39-61 × 3.5-5.5 μm); and large, navicular basidiospores (36.6-56 × 11.9-15.6 μm) with up to 15 transverse septa and several longitudinal septa, germinating via conidia and germ tubes. A detailed description, illustrations, and the results of the phylogenetic analysis for the new species are provided. In addition, the new species is compared with closely related taxa.