Fungalpedia – Note 843, Tympanopsis
Tympanopsis. Starbäck.
Citation when using this data: Huang SK et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank., Fig 1
Classification: Scortechiniaceae, Coronophorales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on wood. Sexual morph: Subiculum composed of numerous, brown to dark brown, branched, septate hyphae. Ascomata scattered to gregarious, superficial, sitting in a subiculum, carbonaceous to coriaceous, black, turbinate, globose to subglobose, the apex collapsing when dry, tuberculate, glabrous, lacking ostioles, with a central, conical Quellkörper. Peridium usually outer layer composed of carbonaceous, black tissue; inner layer composed of membranaceous, brown to hyaline cells of textura angularis to textura prismatica, sometimes Munk pores present. Paraphyses absent. Asci 8-spored, arising from a hyaline placenta-like tissue, radially extending into the locule around the Quellkörper from the base, unitunicate, clavate, pedicellate, apex rounded, without apical ring, evanescent. Ascospores bi-seriate to overlapping, hyaline to brown or olivaceous brown, ellipsoidal to oval, straight or curved, aseptate, smooth-walled, guttulate. Asexual morph: Undetermined (adapted from Starbäck 1894).
Notes – Tympanopsis was introduced by Starbäck (1894) for T. euomphala. Nannfeldt & Santesson (1975) subsequently accepted it as Nitschkia. However, the phylogenetic position of T. uniseriate is an independent clade in Scortechiniaceae (Mugambi & Huhndorf 2010). In this study, Tympanopsis is sister to Scortechinia.
Type species: Tympanopsis euomphala (Berk. & M.A. Curtis) Starbäck, Bih. K. svenska VetenskAkad. Handl., Afd. 3 19(no. 2): 24 (1894).
Other accepted species: Species Fungorum – search Tympanopsis.
Figure 1 – Tympanopsis euomphala: a–l, n–p (IMI-13384); m (redrawn from Starbäck 1894). a Material. b–c Ascomata. d–e Ascoma cross section. f Munk pores (arrow). g Hyphae of subiculum. h–m Asci. n–p Ascospores. Scale bars: b = 1 mm, c = 500 µm, d = 200 µm, e, g = 100 µm, m = 20 µm, f, h–l = 10 µm, n–p = 5 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 14 September 2021