Diversity of wood-decaying fungi in Zixishan area (Hengduan Mountains), Yunnan Province, China

Abstract

Six field surveys were carried out in Zixishan area, Yunnan Province, China during 2016–2021, and 1407 specimens of wood-decaying fungi were collected. The paper summarizes the obtained results on the wood-decaying fungi of this area, consisting of 74 species belonging to 49 genera, 24 families and 7 orders. Polyporales is the dominant order (51.35% of the total species), and Hyphoderma, and Peniophorella are the dominant genera (Each accounted for 6.76% of the total) in this area. Their hosts and substrates were also identified and a checklist of wood-decaying fungi is provided. The taxa were identified by morphology and molecular evidence. The sequences of the Internal Transcribed Spacer (ITS) gene region of the studied specimens were generated and the phylogenetic analyses were performed. Five new species were earlier described in Zixishan area viz. Hyphoderma fissuratum C.L. Zhao & X. Ma (2021: 37), H. microporoides C.L. Zhao & Q.X. Guan (2021: 9), H. tenuissimum C.L. Zhao & Q.X. Guan (2021: 153), Hyphodermella zixishanensis C.L. Zhao (2021: 4), and Phanerochaete pruinosa C.L. Zhao & D.Q. Wang (2021: 8). This work aimed to provide an updated checklist of wood-decaying fungi in Zixishan area, Yunnan Province, China, as well as to enrich the knowledge of the fungal diversity in China and worldwide.

A Contribution to the Phylogeny and Taxonomy of Hydnum (Cantharellales, Basidiomycota) from China

“…Recently, molecular sequences appeared to be very effective in distinguishing species of this genus, and some cryptic species have been discovered. For example, "Hydnum repandum" had been widely reported in China [8][9][10]30]; however, recent phylogenetic studies proved that the Chinese "H. repandum" is a species complex, containing at least four species, such as, H. berkeleyanum, H. melitosarx, H. orientalbidum, and H. sinorepandum. In addition, H. repandum is so far only known from Europe.…”

“…Previously, only three species (H. repandum, H. repandum var. album, and H. rufescens) were recorded in China before 2016 [5,8,9]. Feng et al [5] conducted a molecular phylogenetic study on Hydnum in China, and the results showed that Hydnum species are very diverse in China.…”

“…Cao et al [2] reported twelve species of Hydnum in China, including ten new species. Until now, about 18 species have been reported from China [2][3][4][5][8][9][10]. In recent years, we have carried out investigations on the species diversity of Hydnaceae in southern China and found 11 new species of Cantharellus [11,12].…”

A Contribution to the Knowledge of Hydnum (Hydnaceae, Cantharellales) in China, Introducing a New Taxon and Amending Descriptions of Five Known Species

“…H. repandum, H. repandum var. album, and H. rufescens Pers., were reported in the country [15,20,21]. Then, Feng et al recognized 18 phylogenetic species of the genus [9].…”