ISSN 2756-3294
African Journal of Botany ISSN 2756-3294 Vol. 8 (4), pp. 001-007, April, 2020. © International Scholars Journals
Full Length Research Paper
Leucocalocybe, a new genus for Tricholoma mongolicum (Agaricales, Basidiomycota)
Xiao-Dan Yu1,2, Hui Deng1 and Yi-Jian Yao1,3*
1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
2Graduate University of Chinese Academy of Sciences, Beijing, 100049, China.
3Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, United Kingdom.
Accepted 11 November, 2019
Abstract
A new genus of Agaricales, Leucocalocybe was erected for a species Tricholoma mongolicum in this study. Leucocalocybe was distinguished from the other genera by a unique combination of macro- and micro-morphological characters, including a tricholomatoid habit, thick and short stem, minutely spiny spores and white spore print. The assignment of the new genus was supported by phylogenetic analyses based on the LSU sequences. The results of molecular analyses demonstrated that the species was clustered in tricholomatoid clade, which formed a distinct lineage.
Key words: Agaricales, taxonomy, Tricholoma, tricholomatoid clade.