A new species and new records of Hymenopellis and Xerula (Agaricales, Physalacriaceae) from China

PeerJ. 2023 Dec 20:11:e16681. doi: 10.7717/peerj.16681. eCollection 2023.

Abstract

Hymenopellis is the genus that exhibits the highest number of species within the Xerula/Oudemansiella complex. Numerous species of Hymenopellis demonstrate edibility, and some of these species have been domesticated and cultivated. During an extensive survey carried out in Henan and Jilin Provinces, China, a substantial quantity of Hymenopellis specimens was gathered as a component of the macrofungal resource inventory. Based on the findings of morphological and molecular phylogenetic studies, a new species, Hymenopellis biyangensis, has been identified. A new record species, Hymenopellis altissima, has been discovered in China. Additionally, two new record species, Hymenopellis raphanipes and Xerula strigosa, have been found in Henan Province. Internal transcribed spacer (ITS) and large subunit ribosomal (nrLSU) were used to establish a phylogeny for species identification. Detailed descriptions, field habitat maps and line drawings of these species are presented. The discussion focuses on the relationships between newly discovered species and other related taxa. Additionally, this study provides and a key to the documented species of Hymenopellis and Xerula found in China.

Keywords: Molecular phylogeny; Morphology; New species; Physalacriaceae.

MeSH terms

  • Agaricales*
  • China
  • DNA, Fungal / genetics
  • Phylogeny

Substances

  • DNA, Fungal

Grants and funding

The study was supported by the Jilin Province Science and Technology Development Plan Project (No. 20230202119NC), the study on the species diversity of wild economic fungal resources in Biyang County, Henan Province, China; Research on the Creation of Excellent Edible Mushroom Resources and High Quality & Efficient Ecological Cultivation Technology in Jiangxi Province (20212BBF61002) and the Scientific and Technological Tackling Plan for the Key Fields of Xinjiang Production and Construction Corps (No. 2021AB004). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.