Hypotrachyna cirrhata (Fr.) Divakar, A.Crespo, Sipman, Elix & Lumbsch

Wang, Xin Yu, Zhang, Yan Yun, Liu, Dong, Li, Li Juan, Yang, Mei Xia, Yin, An Cheng & Wang, Li Song, 2020, Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A. Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China, Cryptogamie, Mycologie 20 (12), pp. 193-209 : 198

3. Hypotrachyna cirrhata (Fr.) Divakar, A.Crespo, Sipman, Elix & Lumbsch

Phytotaxa 132 (1): 31 (2013).

SELECTED MATERIALS EXAMINED. — China, Guizhou Prov.: Fanjing Mt, Jiulongchi; 1980 m, on decaying bark; 25.V.1963; J. C. Wei 851 (HMAS); Kaili Ci., Leigongping; 26°21’5.115”N, 107°34’47.99”E; 1300 m, on bark; 20.V.1959; Qiannan Team 1839 (HMAS). Fujian Prov.: Wuyishan Ci., Huanggang Mt; 26°32’23.99”N, 116°25’12.00”E; 1800 m, on bark; 24.V.1988; X. Q. Gao 2812 (HMAS). Yunnan Prov.: Shangrila Ci., Tianbao Mt; 27°36’24.40”N, 99°53’03.54”E; 3794 m, on Salix bark; 6.VI.2012; L. S. Wang 12-35009.

Nepal, Bagmati Zone, Langtang National Park; 28°13’5.93”N, 85°30’51.09”E; 3598 m, on bark; 6.XII.2017, H. X. Shi 17- 57305, 17-57318.

NOTES

For a detailed description, see Culberson & Culberson (1981).

This species is characterized by having cilia on the lobe margin and a bare lower surface.The type specimen was collected from Nepal and published with a very brief description ( Fries 1825). The brief description makes the taxonomic range of this species rather wide and unclear, and consequently, the species has been reported worldwide ( Culberson & Culberson 1981; Flakus et al. 2011; Jiang & Wei 1993; Zahlbruckner 1930).

Specimens from the Hengduan Mountains ( China) and from the type locality ( Nepal), which have the characters of H. cirrhata s.l., formed a monophyletic clade with high support values (97% MLBS and 1.00 PP). However, specimens from South and Central America were clustered in different clades ( Fig. 1 ), indicating that they might belong to different species and that there might be cryptic species within H. cirrhata that have been overlooked due to a lack of clear morphological diagnostic characters.

Because the specimens from China and Nepal formed a well-supported clade, we assume that the specimens from this clade, with a bare lower surface and simple cilia along the lobe margin, belong to H. cirrhata sensu stricto and provide a reference for the delimitation of this species. More material collected globally and more sequences are needed to clarify the range of this species and the cryptic taxa mistakenly identified as this species.

Figures

FIG. 1. — Phylogenetic tree generated from maximum likelihood (ML) analysis based on ITS sequence data. ML bootstrap support values greater than 70% and Bayesian posterior probabilities (PPs) greater than 0.95 are given above the nodes. New species are indicated in bold. “TYPE” refers to the sequences of types, “TOPO” for specimens that come from the type locality. Scale bar: 0.02 substitutions.