Hypotrachyna corallifera Xin Y.Wang & Li S.Wang, 2020

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

4. Hypotrachyna corallifera Xin Y.Wang & Li S.Wang , sp. nov.

( Fig. 2 )

MYCOBANK NUMBER. — MB 832371.

ETYMOLOGY. — The epithet “ corallifera ” refers to the coralliform isidia.

TYPE. — China, Taiwan Prov., Jiayi Co., Alishan Forest Park; 23°30.602’N, 120°48.719’E; 2283 m, on Juniperus bark; 26.IX.2015; L. S. Wang 15-49365 (holo-, KUN [ KUN]).

DIAGNOSIS. — This species is unique in having coralloid-branched isidia forming tufts, with lobules growing mixed with the isidia. The lobes are rather slim and involute. The species resembles H. vexans in having isidia, but it differs in its long and richly branched isidia mixed with lobules.

ECOLOGY AND DISTRIBUTION. — This species occurs in Yunnan and Taiwan, similarly to H. vexans , and usually grows on the bark of Quercus or Pinus, rarely on moss, at elevations of 1400 - 2300 m.

SELECTED SPECIMENS EXAMINED. — China, Yunnan Prov.: Shizong Co., Junzishan Mt; 24°41’19.43”N, 104°09’11.01”E; 2140 m, on Quercus bark; 5.XI.2014; L. S.Wang 14-47191; Nanjian Co., Jinguo Vil.; 24°48.701’N, 100°24.875’E; 2230 m, on moss; 25.V.2012; L. S. Wang 12-33723. Pu’er Ci., Xiaopingzhang Vil.; 22°42.374’N, 101°14.945’E; 1420 m, on bark; 18.I.2005; L. S.Wang 05-24173. Taiwan Prov., Jiayi Co., Alishan Forest Park; 23°30.653’N, 120°48.984’E; 2307 m, on Pinus bark; 26.IX.2015; L. S. Wang 15-49406.

Figures

FIG. 2. — Hypotrachyna corallifera Xin Y.Wang & Li S.Wang, sp. nov.: A, thallus; B, coralloid-branched isidia; C, lobules growing between isidia. Scale bars: A, 1 cm; B, C, 1 mm.