Fungalpedia – Note 2783, Neohypodiscus
Neohypodiscus. J.D. Rogers, Y.M. Ju & Læssøe.
Citation when using this data: Huang SK et al. 2021 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Boliniaceae, Boliniales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on decorticated wood. Sexual morph: Ascostromata subglobose to pulvinate to irregular, solitary or confluent, narrow to broad, carbonaceous, with longitudinal veins below and attachment to the substrate. Ascomata subglobose to ampulliform, brown to black, subglobose, carbonaceous, monostichous, ostiolate, rough-walled. Paraphyses numerous, mostly unbranched, septate. Asci 8-spored, unitunicate, cylindrical to clavate, with J- apical ring. Ascospores uniseriate, greenish to brown, ellipsoidal to crescent-shaped, 0–2-septate, smooth-walled, some with an apical thickening or acellular appendage at one end, with a germ pore at one or both end(s), guttulate. Asexual morph: Undetermined (adapted from Rogers et al. 1994b).
Notes: Rogers et al. (1994b) placed Neohypodiscus in Amphisphaeriaceae (Xylariomycetidae) based on its carbonaceous stromata, cylindrical asci and ellipsoidal to fusiform ascospores. Subsequently, Andersson et al. (1995) transferred it to Boliniaceae. No molecular data for this genus has been sequenced yet. In this study, we maintain Neohypodiscus in Boliniaceae because it has the same carbonaceous stromata and unequal ascospores with hyaline thickened end(s) as Camarops and Apiorhynchostoma.
Type species: Neohypodiscus rickii (Lloyd) J.D. Rogers, Y.M. Ju & Læssøe, Mycologia 86(5): 685 (1994).
Other accepted species: Species Fungorum – search Neohypodiscus.
Figure 1 – Neohypodiscus rickii: a, c, e, g, h (BPI-737826); b, d, f, i (BPI-802543); j, k (redrawn from Rogers et al. 1994b). a, b Herbarium material. c, d Ascostromata on host. e, f Ascostromata narrow to broad connection to substrate with veins. g–i Ascomata (h arrow indicates short umbilicate ostiole). j Ascospores with appendage at the ends. k Ascus with indistinct apical ring; Endoxyla macrostoma: l, m (redrawn from Untereiner 1993). l Ascus. m Ascospores; Mollicamarops stellata: n, o (redrawn from Vasilyeva 2007). n Ascus. o Ascospores; Pseudovalsaria foedans: p–q (redrawn from Spooner 1986). p Ascus. q Ascospores. Scale bars: c–f = 2 mm, g–i = 1 mm, j. m–n. q = 10 µm, k = 50 µm, l, p = 20 µm, o = 5 µm.
References
Rogers JD, Yu YM, Læssøe T 1994b – Neohypodiscus nom. nov. for Hypodiscus. Mycologia 86(5):684–690.
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