Fungalpedia – Note 2776, Immersiella
Immersiella. A.N. Mill. & Huhndorf.
Citation when using this data: Huang SK et al. 2021 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Neoschizotheciaceae, Sordariales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on wood. Sexual morph: Ascomata perithecial, solitary to scattered, immersed to semi-immersed, ovoid to obpyriform, brown, verrucose, ostiolate, with papilla, covered with brown hairs. Peridium comprising membranaceous, hyaline to brown cells of textura angularis or textura prismatica. Asci 8-spored, unitunicate, cylindrical, pedicellate, with J- apical ring distinct, evanescent. Ascospores bi-seriate, cylindrical to geniculate, hyaline to pale brown, aseptate to multi-septate, guttulate, smooth-walled, with gelatinous appendages or appendage absent. Asexual morph: Undetermined (Miller and Huhndorf 2004a; Kruys et al. 2014).
Notes: Miller and Huhndorf (2004a) established Immersiella with I. caudata and I. immersa (type) in Sordariales based on phylogenetic analysis of LSU sequence data. Subsequently, Kruys et al. (2014) found that the clade comprising I. caudata and I. immersa was closely related to Arnium hirtum, which was isolated from dung in Scotland. In our study, A. hirtum, I. caudata and I. immersa also form a strongly supported clade in Neoschizotheciaceae (100%ML/0.97PP). Therefore, we recommend to treat
A. hirtum as Immersiella hirta.
Type species: Immersiella immersa (P. Karst.) A.N. Mill. & Huhndorf, Mycol. Res. 108(1): 31 (2004).
Other accepted species: Species Fungorum – search Immersiella.
Figure 1 – Immersiella immersa: (F-SMH 4104). a Herbarium material label. b, c Ascomata on host. d Ascoma in cross section. e Setae. f Asci and paraphyses. g, h, n Asci. i–k Ascospores. l, m Germinated ascospores. Scale bars: c= 500 µm, d = 200 µm, e. f = 100 µm, g. h. n = 50 µm, i–m = 20 µm.
References
Entry by
Shi-Ke Huang, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China, The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
Published online 18 June 2026