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
Boonmee S, Rossman AY, Liu JK, Li W et al. 2014 – Tubeufiales, ord. nov., integrating sexual and asexual generic names. Fungal Diversity 68, 239–298. https://doi.org/10.1007/s13225-014-0304-7
Boonmee S, Zhang Y, Chomnunti P, Chukeatirote E, Tsui CKM, Bahkali AH, Hyde KD. 2011 – Revision of lignicolous Tubeufiaceae based on morphological reexamination and phylogenetic analysis. Fungal Diversity 51, 63–102.
Goos RD. 1986 – A review of the anamorph genus Helicoma. Mycologia 78, 744–761.
Hongsanan S, Hyde KD, Phookamsak R, Wanasinghe DN et al. 2020b − Refined families of Dothideomycetes: orders and families incertae sedis in Dothideomycetes. Fungal Diversity 105, 17–318.
Liu NG, Lu YZ, Bhat DJ, McKenzie EHC, Lumyong S, Jumpathong J, Liu JK. 2019 – Kevinhydea brevistipitata gen. et sp. nov. and Helicoma hydei sp. nov., (Tubeufiaceae) from decaying wood habitats. Mycological Progress 18, 671–682. https://doi.org/10.1007/s11557-019-01480-8
Lu YZ, Liu JKJ, Hyde KD, Jeewon R, Kang JC, Fan C, Boonmee S, Bhat DJ, Luo ZL, Lin CG, Eungwanichayapant PD. 2018 – A taxonomic reassessment of Tubeufiales based on multi-locus phylogeny and morphology. Fungal Diversity 92, 131–344.
Seifert K, Morgan-Jones G, Gams W, Kendrick B. 2011 – The genera of hyphomycetes. CBS Biodiversity Series no. 9: 1–997. CBS-KNAW Fungal Biodiversity Centre, Utrecht, Netherlands.
Tsui CKM, Sivichai S, Berbee ML. 2006 – Molecular systematics of Helicoma, Helicomyces and Helicosporium and their teleomorphs inferred from rDNA sequences. Mycologia 98, 94–104.
Tsui CKM, Sivichai S, Rossman AY, Berbee ML. 2007– Tubeufia asiana, the teleomorph of Aquaphila albicans in the Tubeufiaceae, Pleosporales, based on cultural and molecular data. Mycologia 99, 884–894.
Zhao G, Liu X, Wu W. 2007– Helicosporous hyphomycetes from China. Fungal Diversity 26, 313–524.
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