Thaxterogaster is a taxonomic synonym of Cortinarius: New combinations and new names
Results of our earlier molecular phylogenetic studies using sequences of the rDNA interna transcribed spacers (ITS) showed that the genus Thaxterogaster is polyphyletic, and nested within Cortinarius: the secotioid Thaxterogaster spp. have multiple origins within the subgenera Myxacium, Phlegmacium and Telamonia. In order to acknowledge these phylogenetic relationships, and the given morphological transitions, we propose to synonymize Thaxterogaster with Cortinarius. For the 54 currently recognized species of Thaxterogaster as well as for 2 varieties, 41 new combinations and 15 new names are proposed.
Peintner, U; Moser, M; Vilgalys, R
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