Species diversity of Tulosesus(Psathyrellaceae,Agaricales)in China
Tulosesus is the second largest genus next to Coprinopsis in the number of known species of coprinoid fungi.Its main characteritics are that both the cap and the stipe present cystidiate.It is treated as an independent genus separating from Coprinellus recently,while its phylogenetic position and framework are still controversial.From 2021 to 2023,we have carried out a nationwide field research,and found more than 20 species of Tulosesus in China.In this paper,10 species new to China are reported and illustrated with line drawings,viz.Tulosesus brevisetulosus,T.canistri,T.cinereopadillus,T.fuscocystidiatus,T.marculentus,T.pellucidus,T.plagioporus,T.sabulicola,T.sassii and T.velatopruinatus.Using ITS and LSU sequence datasets,the phylogenetic framework of this genus was inferred.The results show that Tulosesus is a monophyletic genus composed of three independent subgenus lineages.Combined with morphological characteristics,the characteristics of each lineage of this genus were preliminarily clarified.
morphologyphylogenyPsathyrellaceaecoprinoid funginew record to China