Fungalpedia – Note 2425, Xylomyces
Xylomyces. Goos, R.D. Brooks & Lamore.
Citation when using this data: Dong W et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Aliquandostipitaceae, Jahnulales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on submerged wood, leaves in freshwater or rotten leaves, root in terrestrial habitats. Sexual morph: Undetermined. Asexual morph: Colonies on natural substrate thin, effuse, reddish brown. Mycelium immersed and superficial, composed of branched, septate, fuscous hyphae. Stroma absent. Conidiophores and conidia absent. Chlamydospores abundant, broadly fusiform, brown to blackish, intercalary, solitary or catenate, occasionally branched, straight or curved, uniform in colour or sometimes end cells paler, with thick septate, distinctly constricted at the septa, thick-walled (Goos et al. 1977).
Notes: The chlamydospores of Xylomyces are often found on submerged wood in freshwater habitats (Goos et al. 1977; Goh et al. 1997). The type species X. chlamydosporus was shown to belong in Aliquandostipitaceae based on molecular data (Campbell et al. 2007; Huang et al. 2018). Freshwater species X. aquaticus (Dudka) K.D. Hyde & Goh and X. elegans Goh et al. clustered in Pleosporales, therefore they were excluded from Xylomyces (Prihatini et al. 2008; Suetrong et al. 2011a; Tanaka et al. 2015). Five species are accepted in the genus, however, only X. chlamydosporus has been confirmed with molecular data. The species can be distinguished by chlamydospores size, septation and ornamentation of wall. This genus is in need of additional molecular studies to establish if other described species are phylogenetically related to X. chlamydosporus within Jahnulales.
Type species: Xylomyces chlamydosporus Goos, R.D. Brooks & Lamore
Other accepted species: Species Fungorum – search Xylomyces.
Figure 1 – a, b Conidia of Xylomyces chlamydosporus (H58-4). Scale bars: a–d = 200 µm, e = 50 µm, f = 100 µm.
References
Entry by
Wei Dong, Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, China
Published online 22 May 2026