Mycological Progress

, Volume 17, Issue 3, pp 357–364 | Cite as

Purpureocorticium microsporum (Basidiomycota) gen. et sp. nov. from East Asia

Original Article
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Abstract

A corticioid fungal species found in mountainous Taiwan, and Yunnan Province of China, is described as a new genus and new species: Purpureocorticium microsporum (Agaricomycetes, Basidiomycota). Morphological study and phylogenetic analyses based on sequence data respectively derived from the large subunit nuclear ribosomal RNA gene (LSU nrDNA) alone and the combined dataset of LSU nrDNA and translation elongation factor 1-α gene (tef1-α) indicated that Purpureocorticium does not belong to any clade of the Agaricomycetes. Purpureocorticium and P. microsporum are characterized by having a resupinate basidiocarp with smooth hymenial surface which turns purple in KOH, and becomes purplish after storage, microscopically having compact texture of subiculum, nodose-septate thin-walled generative hyphae, absence of cystidia, basidia subclavate with a median constriction, or utriform, bearing ovate-ellipsoid small-sized basidiospores, which are smooth and thin-walled, inamyloid, and nondextrinoid. The new combination Rhizochaete rubescens is proposed, based on morphological and phylogenetic evidences.

Keywords

China New genus New species Taiwan Taxonomy 
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Notes

Acknowledgements

This study was supported by the Ministry of Science and Technology of the ROC (grant no. 104-2621-B-178-001-MY3).

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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Department of BiologyNational Museum of Natural ScienceTaichungTaiwan, Republic of China
  2. 2.Department of PharmacologyUniversity of IllinoisChicagoUSA

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