Morphological and molecular data reveal one new species of Coltricia and one new species of Sidera in Hymenochaetales from South China
Two new poroid species of Hymenochaetales, Coltricia subpusilla and Sidera pini, are described from Anhui Province and Jiangxi Province based on morphological characters and multimarker phylogenetic analyses using a combined ITS, nLSU, and partial tef1 dataset. Phylogenetic results revealed that C. subpusilla is closely related to C. pusilla and that S. pini is related to S. borealis. Coltricia subpusilla was found on the bark of dead Pinus and is recognized by its annual, laterally stipitate, small, flabelliform to subcircular pilei, angular pores (2–3 per mm), and smooth to verrucose basidiospores. Sidera pini was found on fallen trunks of Pinus massoniana and is characterized by annual, resupinate basidiomata with angular pores (8–12 per mm), a dimitic hyphal system, and allantoid basidiospores. Detailed descriptions and illustrations of the two new species are provided.
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