Teichosporella
Teichosporella (Sacc.) P. Karst., Hedwigia 27: 102 (1895).
≡ Teichospora subgen. Teichosporella Sacc., Syll. fung. (Abellini) 2: 303 (1883).
Index Fungorum number: IF 5361; Facesoffungi number: FoF 12496, 16 morphological species (Species Fungorum 2022), no molecular data available.
Saprobic on host. Sexual morph: Ascomata rounded, apothecioid, immersed then erumpent-superficial among wood fibers, dull black with protruding cells or hyphae, rarely glabrous, plane upper surface granular in appearance or puckered or rugulose, with brown hyphae, smooth-walled or granular encrusted, extending from sides into substrate; peridium soft, pseudoparenchymatous, dark reddish-brown. Asci bitunicate, oblong clavate. Pseudoparaphyses narrow cellular, bluntly rounded, encrusted with reddish brown pigment. Ascospores hyaline, becoming light dull brown in age, obovoid oblong, ends obtuse, straight or inequilateral, 3-4-5-6-(7-)-septate, longitudinal septum in one or more cells, wall and septa thick, wall smooth; contents homogeneous and refractive or granular; overlapping 2-seriateor triseriate in the ascus. In Melzer's reagent, pseudoparaphyses tips darkened, cytoplasm of asci and ascospores dextrinoid, no blue reaction. Asexual morph: Unknown (adapted from Barr 1981).
Type species: Teichosporella dura Sacc.
Notes: Teichosporella is characterised by rounded, apothecioid, immersed then erumpent-superficial ascomata, oblong clavate asci and hyaline to light dull brown, obovoid oblong ascospores. Lumbsch and Huhndorf (2010), Kirk et al. (2013) and Wijayawardene et al. (2017, 2020) listed Teichosporella in Dothideomycetes genera incertae sedis. Molecular data is lacking. Fresh collections with DNA sequence data are needed to confirm the systematic position of Teichosporella.
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