Characterization of four species including one new species of Agaricus subgenus Spissicaules from Eastern China

Abstract

Four species of Agaricus subgenus Spissicaules, including a new species A. catenariocystidiosus, are identified from Eastern China based on morphological and molecular data. All of the species are introduced with full descriptions. Phylogenetic relationships were inferred based on the nuclear ribosomal internal transcribed spacer (ITS) region. The known species A. inthanoensis, A. parasubrutilescens and A. planipileus are compared with their original descriptions, and several supplementary morphological characters are provided.

Species diversity of Basidiomycota

“…Large parts of the studies stem from international collaborations between European and Asian teams (Callac and Chen 2018). In total, 119 new species were described from Asia, representing 63% of the new species described worldwide (Chen et al 2012(Chen et al , 2015(Chen et al , 2016(Chen et al , 2017(Chen et al , 2019aZhao et al 2012Zhao et al , 2013Karunarathna et al 2014;Li et al 2014aThongklang et al 2014Thongklang et al , 2016Ariyawansa et al 2015;Gui et al 2015;He and Zhao 2015;Liu et al 2015aLiu et al , 2020Wang et al 2015b;Dai et al 2016;Kaur et al 2016;Zhao et al 2016a, b;Zhou et al 2016;He et al 2017He et al , 2018aHyde et al 2017;Zhang et al 2017;Bashir et al 2018;Mahdizadeh et al 2018;Hussain and Sher 2019;Phookamsak et al 2019;Zheng et al 2019;Cao et al 2021). Most of these new species were from tropical or subtropical regions, which is a good indication of the potential high species diversity in other unexplored tropical areas.…”