Fungalpedia – Note 3089, Payosphaeria
Payosphaeria W.F. Leong, in Leong et al., Bot. Mar. 33: 511 (1990).
Citation when using this data: Perera RH et al. 2023 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1.
Classification: Incertae sedis, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi.
Saprobic on submerged mangrove wood blocks and driftwood, in marine habitats. Sexual morph: Ascomata perithecial, solitary to gregarious, superficial, globose to pyriform, papillate, membranous, hyaline, subhyaline to yellowish brown, ostiolate. Ostioles lack periphyses. Ascomatal neck cylindrical, hyaline, stout. Peridium of single stratum, up to 8 µm thick, composed of thin-walled, elongate cells. Paraphyses not abundant, branched, septate, hyaline. Asci 8-spored, unitunicate, long-cylindrical, short pedicellate, persistent, thin-walled, developing at the base of the ascomata. Ascospores uniseriate, round to oval, aseptate, guttuale, hyaline, thin-, smooth-walled, without appendages or gelatinous sheath. Asexual morph: Undetermined.
Notes: Leong (1990) erected this monospecific genus for lignicolous taxon Payosphaeria minuta, without assigning it to any order. Payosphaeria minuta usually associated with submerged mangrove wood (Avicennia alba, A. lanata and Rhizophora apiculata) and, driftwood (Leong 1990). No sequence data are available. We could not observe the 3% KOH reaction of ascomata, as we received permanent slides of herbarium material.
Type species: Payosphaeria minuta H.Y.M. Leung, in Leong, Tan, Hyde & Jones, Bot. Mar. 33: 511 (1990).
Other accepted species: Species Fungorum – search Payosphaeria.
Figure 1 – Payosphaeria minuta (IMI 327472, holotype) a Herbarium material with label b, c Transverse section through ascoma d Transverse section of peridium e Ascus f Ascospores. Scale bars: b, c = 50 µm, d = 20 µm, e = 50, f = 5 µm.
References
Entry by
Perera RH, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou 550006, P. R. 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, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand.
Published online 4 September 2026