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DOI: http://dx.doi.org/10.11646/phytotaxa.343.3.7

Tylopilus callainus, a new species with a sea-green color change of hymenophore and context from the south of China

ZHI-QUN LIANG, MING-SHENG SU, SHUAI JIANG, DENG HONG, NIAN-KAI ZENG

Abstract


Tylopilus callainus (Boletaceae, Boletales) is described as a new species from the south of China. It is morphologically characterized by a brown pileus tinged with sea-green, a sea-green color change of hymenophore and context when injured, a stipe with sea-green color on the upper part, and a trichodermal pileipellis with slightly inflated hyphae. Phylogenetic analyses of DNA sequences from partial 28S regions, the nuc rDNA internal transcribed spacer (ITS) and the translation elongation factor 1-α gene (TEF1) also confirm that T. callainus forms an independent lineage within Tylopilus s. str. Consequently, a detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented.


Keywords


bolete, new taxon, molecular phylogeny, morphology, taxonomy, Fungi

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References


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