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http://dx.doi.org/10.1080/12298093.2021.1943812

Taxonomic Revision of the Genus Lactifluus (Russulales, Basidiomycota) of South Korea  

Lee, Hyun (School of Biological Sciences and Institute of Microbiology, Seoul National University)
Wissitrassameewong, Komsit (National Biobank of Thailand (NBT), National Science and Technology Development Agency (NSTDA))
Park, Myung Soo (School of Biological Sciences and Institute of Microbiology, Seoul National University)
Fong, Jonathan J. (Science Unit, Lingnan University)
Verbeken, Annemieke (Ghent University, Department of Biology, Research Group Mycology)
Kim, Changmu (Biological and Genetic Resources Utilization Division, National Institute of Biological Resources)
Lim, Young Woon (School of Biological Sciences and Institute of Microbiology, Seoul National University)
Publication Information
Mycobiology / v.49, no.4, 2021 , pp. 308-345 More about this Journal
Abstract
Lactifluus (Pers.) Roussel is an ectomycorrhizal genus that was recently recognized to be distinct from the genus Lactarius. To date, 226 Lactifluus species have been reported worldwide. Misidentification of Lactifluus species is common because of intraspecific morphological variation, cryptic diversity, and the limited number of taxonomic keys available. Molecular data are indispensable for species delimitation; a multilocus phylogenetic analysis showed that most Asian Lactifluus species are not conspecific with morphologically similar species present on other continents. In particular, Korea has misused European and North American Lactifluus names. In this study, we evaluated the taxonomy of Lactifluus in Korea using both morphological and multilocus molecular (ITS, nrLSU, rpb1, and rpb2) data. We examined 199 Lactifluus specimens collected between 1980 and 2016, and a total of 24 species across the four Lactifluus subgenera were identified. All Korean species are distinct and clearly separated from European and North American species. Five taxa corresponded to previously described species from Asia and the remaining 19 taxa are confirmed as new species. Herein, we provide keys to the Korean Lactifluus species within their subgenera, molecular phylogenies, a summary of diversity, and detailed description of the new species.
Keywords
Milkcap; diversity; multilocus phylogeny; species delimitation;
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