Morphological and molecular analyses reveal two new species of Grifola (Polyporales) from Yunnan, China

By

Tang, Song-Ming
Chen, De Chao
Wang, Shuai
Wu, Xiao Qu
Ao, Cheng Ce
Li, Erxian
Luo, Hongmei
Li, Shu Hong

Type

Article

Date of Publication

2024

Original Publication

MycoKeys

Volume

102

Pages

267--284

Subjects

2 new species , Morphology , multi-gene phylogeny , Southeast Asia , taxonomy , Yunnan

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.102.118518

 

Abstract

Species of Grifola are famous edible mushrooms and are deeply loved by consumers around the world. Most species of this genus have been described and recorded in Oceania, Europe and South America, with only Grifola frondosa being recorded in Asia. In this study, two novel species of Grifola from southwestern China (Asia) are introduced. Macro and micromorphological characters are described. Grifola edulissp. nov. present medium-size basidiomata with gray to gray-brown lobes upper surface, mostly tibiiform or narrowly clavate, rarely narrowly lageniform or ellipsoid chlamydospores, cuticle hyphae terminal segments slightly enlarged. Grifola sinensissp. nov. has white to grayish white lobes upper surface, mostly ellipsoid, rarely narrowly utriform chlamydospores, and broadly ellipsoid to ellipsoid basidiospores (4.6–7.9 × 3.0–5.9 μm). The two new species are supported by phylogenetic analyses of combined nuclear rDNA internal transcribed spacer ITS1-5.8S-ITS2 rDNA (ITS) and β-tubulin (TUBB). Moreover, the genetic distance between TUBB sequences of those specimen from GenBank was 1.76–1.9%. Thus, the conspecificity relationship of our specimens remains uncertain, and further specimens are required to conclusively confirm its identity.