Confertotrama aspella (Hjortstam) Nakasone & S.H. He, 2025

Confertotrama aspella (Hjortstam) Nakasone & S.H. He , comb. nov. MB 843413 View Materials . Figs 4A, B View Fig .

Basionym: Gloeocystidiellum aspellum Hjortstam, Mycotaxon View in CoL 28: 27. 1987.

Specimens examined: China, Anhui Province, Qimen County, Guniujiang Nature Reserve , 10 Aug. 2013, S.H. He, He 1773 ( BJFC 016240 About BJFC ) ; Fujian Province, Wuyishan County, Wuyishan Nature Reserve , on fallen angiosperm trunk, 17 Aug. 2016, S.H. He, He 4466 ( BJFC 023907 About BJFC ), 6 Apr. 2018, S.H. He, He 5370 ( BJFC 026431 About BJFC ) ; Guangdong Province, Renhua County, Danxiashan Nature Reserve , on fallen angiosperm trunk, 4 Jun. 2019, S.H. He, He 5852 ( BJFC 030727 About BJFC ) ; Hubei Province, Wufeng County, Chaibuxi Forest Park, on dead angiosperm branch, 15 Aug. 2017, S.H. He, He 5049 ( BJFC 024567 About BJFC ) ; Jiangxi Province, Yifeng County, Guanshan Nature Reserve , on fallen angiosperm trunk, 10 Aug. 2016, S.H. He, He 4262 ( BJFC 023704 About BJFC ); Taiwan , Nantou County, Nandongyan Mountains , on fallen angiosperm branch, 7 Dec. 2016, S.H. He, He 4613 ( BJFC 024055 About BJFC ) ; Zhejiang Province, Qingyuan County, Tiantang Mountains , on fallen angiosperm trunk, Aug. 2013, S.H. He, He 2041 ( BJFC 016510 About BJFC ) . Vietnam, Lam Dong Province, Bi Doup Nui Ba National Park , on fallen trunk of Quercus View in CoL , 14 Oct. 2017, S.H. He, He 5247 ( BJFC 024765 About BJFC ), He 5262 ( BJFC 024780 About BJFC ), He 5266 ( BJFC 024784 About BJFC ) & He 5270 ( BJFC 024788 About BJFC ) .

Notes: The species was originally described from Africa and is distinguished in Gloeocystidiellum s. lat. by its large ornamented basidiospores ( Hjortstam 1987). Wu (1996) reported it from Taiwan, and here we record it from mainland China and Vietnam. However, whether the Asian specimens are identical with African ones needs further study. Larsson & Larsson (2003) showed that sequences of Gm. compactum and Gm. formosanum , both described from Taiwan, are almost identical with Gm. aspellum from Asia. Differences among the three species are mainly found in basidiospore size and culture incompatibility ( Wu 1996). Thus, we leave the species complex of Gm. compactum and Gm. formosanum for future studies, and refrain from proposing taxonomic changes at this time.