期刊
FUNGAL BIOLOGY
卷 116, 期 12, 页码 1263-1274出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funbio.2012.09.004
关键词
Cantharelloid clade; Coral fungi; Ectomycorrhizal fungi; Fungal systematics; Guyana
类别
资金
- Humboldt Bay Mycological Society's George Verback Memorial Scholarship
- McCrone Graduate Fellowship
- Cascade Mycological Society Outstanding Graduate Research Fellowship
- Friends of the Farlow Scholarship
- National Science Foundation [DEB-0918591]
- National Geographic Society's Committee for Research and Exploration [NSF DEB-0918730, NSF DEB-0732968]
- Guyana's Environmental Protection Agency
- Guyana Forestry Commission
- Division Of Environmental Biology
- Direct For Biological Sciences [0918591] Funding Source: National Science Foundation
Three new and one previously described species of Clavulina (Clavulinaceae, Cantharellales, Basidiomycota) are reported from the central Guiana Shield region from tropical rainforests dominated by ectomycorrhizal trees of the leguminous genus Dicymbe (Fabaceae subfam. Caesalpinioideae). We provide morphological, DNA sequence, habitat, and fruiting occurrence data for each species. The new species conform to a generic concept of Clavulina that includes coralloid, branched basidiomata with amphigenous hymenia, basidia with two or 2-4 incurved sterigmata and postpartal septa present or absent, and smooth, hyaline, guttulate basidiospores. Placements of the new species in Clavulina were corroborated with DNA sequence data from the internal transcribed spacer and large subunit of the nuclear ribosomal repeat, and their infrageneric relationships were examined with phylogenetic analyses based on DNA from the region coding for the second largest subunit of DNA-dependent RNA polymerase II (rpb2). To facilitate future studies of the genus in the neotropics, a key is provided for all Clavulina species described from the lowland neotropics. (C) 2012 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.
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