On Sistotremastrum and similar-looking taxa (Trechisporales, Basidiomycota)
2021
Spirin, Viacheslav | Volobuev, Sergey | Viner, Ilya | Miettinen, Otto | Vlasák, Josef | Schoutteten, Nathan | Motato-Vásquez, Viviana | Kotiranta, Heikki | Hernawati, Nana | Larsson, Karl-Henrik | Finnish Museum of Natural History | Botany and Mycology Unit | Doctoral Programme in Wildlife Biology
The taxonomy of Sistotremastrum (Trechisporales, Basidiomycota) is revised based on morphology and DNA data. The genus is shown to be polyphyletic, and therefore it is split into two units-Sistotremastrum s. str. and Sertulicium, gen. nov. (typified with Corticium niveocremeum). Sistotremastrum s. str. is retained for eleven species of which eight are described as new while Sertulicium encompasses at least six species, including one new to science. Both of these genera are only distantly related to other representatives of the Trechisporales. Additionally, a new poroid neotropical species, Porpomyces abiens (Hydnodontaceae), is described as morphologically similar to some members of Sistotremastrum s. str.
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