Helicoma muelleri
Helicoma muelleri Corda, Icon. fung. (Prague) 1: 15 (1837)
Index Fungorum number: IF 238937; Facesoffungi number: FoF 00178, Fig. 1
Description: see Boonmee et al. (2014); Lu et al. (2018).
Material considered: see Boonmee et al. (2014); Lu et al. (2018).
Fig. 1 Helicoma muelleri (BPI 447569). a Details of herbarium material. b Conidiophores with attached apical conidium on natural substrate. c–e Conidiophores with detached conidia and minute denticles (arrows). f, g Conidia. Scale bars: b = 500 µm, c, e = 50 µm, d, f, g = 20 µm.
Importance and distribution
There are 92 Helicoma epithets in Index Fungorum (2022), but many have been transferred to other genera such as Camporesiomyces, Chlamydotubeufia, Cirrenalia, Dematiohelicoma, Dematiotubeufia, Drepanospora, Helicofilia, Helicomyces, Helicosporium, Helicotruncatum, Neohelicoma, Neohelicosporium, Pseudocercospora, Thaxteriella, Trochophora, Tubeufia, Xenosporium and Zalerion. Helicoma comprises 64 species known on various host plants in Anacardiaceae, Araliaceae, Arecaceae, Betulaceae, Dilleniaceae, Euphorbiaceae, Fagaceae, Myrtaceae, Pandanaceae, Salicaceae and Sapindaceae. Helicoma has a worldwide distribution including Africa (Tanzania, Western Cape), Asia (Hong Kong, Japan, Russia, Taiwan) and North America (Caribbean, Canada, Mexico, The United States).
References
Goos RD. 1986 – A review of the anamorph genus Helicoma. Mycologia 78, 744–761.
Zhao G, Liu X, Wu W. 2007– Helicosporous hyphomycetes from China. Fungal Diversity 26, 313–524.
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