1. Cercopemyces crocodilinus, a new genus and species related to Ripartitella, is described from North America.
- Author
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Baroni TJ, Kropp BR, Evenson VS, and Wilhelm M
- Subjects
- Agaricales genetics, Agaricales ultrastructure, Base Sequence, Colorado, DNA, Fungal chemistry, DNA, Fungal genetics, DNA, Ribosomal chemistry, DNA, Ribosomal genetics, DNA, Ribosomal Spacer chemistry, DNA, Ribosomal Spacer genetics, Fungal Proteins genetics, Hyphae, Molecular Sequence Data, Multilocus Sequence Typing, Mycological Typing Techniques, Phylogeny, RNA Polymerase II genetics, Sequence Analysis, DNA, Spores, Fungal, Trees, Utah, Agaricales classification, Rosaceae microbiology
- Abstract
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., (© 2014 by The Mycological Society of America.)
- Published
- 2014
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