Additions to tribe Chromosereae (Basidiomycota, Hygrophoraceae) from China, including Sinohygrocybe gen. nov and a first report of Gloioxanthomyces nitidus

作者：Wang, Chao Qun; Zhang, Ming; Li, Tai Hui^*; Liang, Xi Shen; Shen, Ya Heng

来源：MycoKeys, 2018, 38(38): 59-76.

DOI：10.3897/mycokeys.38.25427

• East Asia
• new record species
• new taxa
• phylogeny overview

Sinohygrocybe gen. nov., typified by S. tomentosipes sp. nov., is described upon morphological and molecular evidence. The new genus is characterised by its sinuate to subdecurrent or short deccurent, usually furcate and interveined and relatively distant lamellae, dry and whitish tomentose stipe, thin-walled ellipsoid to oviod, non-constricted basidiospores and particularly elongated basidia and a ratio of basidiospore to basidium length of >5 to 8; it is close to genera Chromosera and Gloioxanthomyces of the tribe Chromosereae, but morphologically differs from Chromosera in less umbilicate basidiomata, tomentose stipe and usually longer basidia and differs from Gloioxanthomyces in more robust basidioma and less glutinous pileus and/or stipe surface. Phylogenetic analyses, with ITS-LSU-RPB2 data, also indicate that Sinohygrocybe forms a very distinct and independent Glade at the generic level. In addition, a Chinese new record G. nitidus is described here.

• 出版日期2018-8-28
• 单位广东省微生物研究所