Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China - Sorbonne Université
Article Dans Une Revue European Journal of Taxonomy Année : 2021

Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China

Xiu-Chao Xie
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Résumé

Two novel species of Russula (Russulaceae, Russulales), R. coronaspora Y.Song sp. nov.and R. minor Y.Song sp. nov. belonging to subgenus Russula crown clade, are described based onboth morphological and phylogenetic evidence. In morphology, R. coronaspora sp. nov. is mainlycharacterized by its distinct spores ornamented with sparse, cylindrical and isolated spines, whichresemble coronavirus, and gelatinized pileipellis with pileocystidia mostly septate and sometimesbranched; R. minor sp. nov. possesses a very small basidiocarp with pileus less than 2.5 cm in diameter.,small basidia, easily peeling and gelatinized pileipellis with slender terminal cells and abundant SV+pileocystidia. Positions of the two new species in both phylogenetic trees based on ITS and 5-locussequences (nLSU, mtSSU, rpb1, rpb2 and tef1) confirm their distinct taxonomic status.

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Dates et versions

hal-03428974 , version 1 (15-11-2021)

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Yu Song, Xiu-Chao Xie, Bart Buyck. Two novel species of subgenus Russula crown clade (Russulales, Basidiomycota) from China. European Journal of Taxonomy, 2021, 775, pp.15-33. ⟨10.5852/ejt.2021.775.1543⟩. ⟨hal-03428974⟩
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