期刊
FUNGAL BIOLOGY
卷 120, 期 12, 页码 1540-1553出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funbio.2016.08.005
关键词
Basidiomycota; Cryptic species; Dicymbe; Fungal diversity; Systematics
类别
资金
- Department of Ecology and Evolutionary Biology at the University of Tennessee
- National Science Foundation (NSF) [DEB-0918591, DEB-1556412]
- National Geographic Society's Committee for Research and Exploration [6679-99, 7435-03, 8481-08]
- Linnean Society of London
- Explorers Club
- NSF [DEB-1051782, DEB-1354802]
- Smithsonian Institution's Biological Diversity of the Guiana Shield Program [223]
- Direct For Biological Sciences
- Division Of Environmental Biology [1354802] Funding Source: National Science Foundation
A new genus and three new species of Agaricales are described from the Pakaraima Mountains of Guyana in the central Guiana Shield. All three of these new species fruit on the ground in association with species of the ectomycorrhizal (ECM) tree genus Dicymbe (Fabaceae subfam. Caesalpinioideae) and one species has been shown to form ectomycorrhizas. Multi-locus molecular phylogenetic analyses place Guyanagarika gen. nov. within the Catathelasma Glade, a lineage in the suborder Tricholomatineae of the Agaricales. We formally recognize this 'Catathelasma Glade' as an expanded family Catathelasmataceae that includes the genera Callistosporium, Catathelasma, Guyanagarika, Macrocybe, Pleurocollybia, and Pseudolaccaria. Within the Catathelasmataceae, Catathelasma and Guyanagarika represent independent origins of the ectomycorrhizal habit. Guyanagarika is the first documented case of an ECM Agaricales genus known only from the Neotropics. (C) 2016 British Mycological Society. Published by Elsevier Ltd. All rights reserved.
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