期刊
MYCOLOGIA
卷 106, 期 4, 页码 785-796出版社
TAYLOR & FRANCIS INC
DOI: 10.3852/13-312
关键词
Cercocarpus; Cystoderma; Cystodermella; Great Basin; ITS; new combination; nLSU; phylogenetics; rpb1
类别
资金
- Utah Agricultural Experiment Station
- National Science Foundation, Biodiversity Surveys and Inventories Program (NSF Awards) [DEB-0103621, DEB-9525902]
Cercopemyces is described as a new genus based on collections of a newly discovered agaricoid species from the arid Cercocarpus forests of Utah and Colorado. The new genus is near Ripartitella and Cystodermella based on nLSU, rpb1 and ITS molecular sequences but distinctly different from these taxa. The ornamented basidiospores and inflated cells in the scales of the pileus surface of Cercopemyces indicate a close relationship to some species of Ripartitella, and the molecular analyses support the sister group relationship. Morphologically Cercopemyces crocodilinus is reminiscent of the genus Amanita in the field, but the inamyloid, cyanophilic, ornamented basidiospores and lack of acrophysalidic hyphae in the trama indicate otherwise. A rare eastern USA species, Ripartitella ponderosa, is transferred to Cercopemyces based on morphological and molecular data.
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