Biotrophic and saprophytic fungi from the Rhodocybe-Clitopilus clade (Entolomataceae): two new species and one now record in subtropical China

By

Jian, Si-Peng
Chen, Xia
Yang, Tianwei
Xu, Xinjing
Gao, Feng
Fang, Yiwei
Liu, Jing
Zhang, Chunxia

Type

Article

Date of Publication

2025

Original Publication

MycoKeys

Volume

116

Pages

227--254

Subjects

Biotrophic species , Entolomataceae , Morphology , multigene phylogeny , plant pathogens , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.116.148775

 

Abstract

This study proposes two new species and a new record in the Rhodocybe-Clitopilus clade, based on comprehensive morphological and molecular analyses. The nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS), the large subunit ribosomal RNA gene (LSU), the RNA polymerase II second largest subunit (RPB2) and the translation elongation factor 1-alpha gene (TEF1), were employed to elucidate the relationships of Clitopilus and Rhodocybe. The first species, Clitopilus parasiticus, is capable of infecting the leaves of host plants in the genera Dryopteris and Oplismenus, exhibiting typical biotrophic behaviour while also demonstrating saprophytic growth on soil. Intraspecific comparisons were conducted, examining environmental factors as well as macro- and microscopic characteristics amongst individuals found on different plant hosts. Furthermore, this study reports the new saprophytic species, Rhodocybe zijinshanensis and provides a detailed description of Clitopilus baronii, a newly-recorded species in China.