@ARTICLE{TreeBASE2Ref31554, author = {Yaxing Wu}, title = {Two new species of Steccherinum (Polyporales, Basidiomycota) from southern China based on morphology and DNA sequence data}, year = {2020}, keywords = {Molecular phylogeny, Steccherinaceae, Taxonomy, Wood-rotting fungi, Yunnan Province}, doi = {}, url = {http://}, pmid = {}, journal = {Phytotaxa}, volume = {}, number = {}, pages = {}, abstract = {Two new wood-inhabiting fungal species, Steccherinum hirsutum and S. yunnanense spp. nov., are proposed based on a combination of morphological features and molecular evidence. Steccherinum hirsutum is characterized by an annual growth habit, stipitate basidiocarps with scarlet to red, odontioid hymenial surface, a dimitic hyphal system with clamped generative hyphae negative in Melzer?s reaction, and acyanophilous basidiospores measuring 2.7?3.7 ?1.6?2.7 ?m. Steccherinum yunnanense is distinguished by resupinate basidiomata with odontioid hymenial surface, a dimitic hyphal system with clamped generative hyphae, strongly encrusted cystidia and ellipsoid, hyaline, thin-walled, smooth basidiospores (3.3?4.7 ? 2.2?3.3 ?m). Sequences of ITS and LSU nrRNA gene regions of the studied samples were generated, and phylogenetic analyses were performed using maximum likelihood, maximum parsimony and bayesian inference methods. The phylogenetic analyses based on the combined ITS dataset comfirmed that two new species nest in Steccherinum, in the residual polyporoid clade, the results revealed that Steccherinum hirsutum groups with S. bourdotii. Steccherinum yunnanense groups with S. tenue. The other phylogenetic analyses based on molecular data of ITS+nLSU sequences, the results revealed that Steccherinum hirsutum groups with S. bourdotii, S. ochraceum and S. undigerum. Steccherinum yunnanense formed a well-supported lineage in an isolated position distinct from other Steccherinum species.} }

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