Fungalpedia – Note 2959, Neoheleiosa
Neoheleiosa P.E. Mortimer.
Citation when using this data: Zhang JF et al. 2023 – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Classification: Monoblastiaceae, Monoblastiales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.
Neoheleiosa was introduced and assigned to Monoblastiaceae based on morphological and molecular analysis (Mortimer et al. 2021). It is phylogenetically close to Heleiosa, but differs in the ornamentation of ascospores. Heleiosa is characterized by ellipsoidal to fusiform, two-celled, brown ascospores with numerous cilia-like subapical appendages at each end. Neoheleiosa has narrowly ovoid to clavate, 1-septate, dark brown, guttulate ascospores with conically rounded ends and faintly longitudinally striation, and lacks any appendages (Kohlmeyer et al. 1996; Mortimer et al. 2021).
Type species: Neoheleiosa guizhzouensis J.F. Zhang & K.D. Hyde.
Other accepted species: Species Fungorum – search Neoheleiosa.
Figure 1 – Neoheleiosa guihzouensis (MFLU 18-2268, holotype): a, b Appearance of ascomata on the substrate. c Vertical section through ascoma. d Section of peridium. e Pseudoparaphyses. f–i Asci. j–o Ascospores. Scale bars: c = 100 µm, d, e = 10 µm, f–i = 20 µm, j–o = 5 µm.
References
Entry by
Jinfeng Zhang, Guizhou Provincial Institute of Tea, Guiyang 550006, People’s Republic of China, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang 550006, People’s Republic of China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Published online 14 August 2026