Leptopeltis
Leptopeltis Höhn., Ber. dt. bot. Ges. 35: 418 (1917).
Index Fungorum number: IF 2786; Facesoffungi number: FoF 07970, 9 morphological species (Species Fungorum 2022), no molecular data available.
Saprobes on stems or leaves, commonly occurring on ferns or some flowering plants, visible as black circular spots or irregular longitudinal spots on the host surface. Sexual morph: Ascomata relatively small, subcuticular or superficial, with hyphae immersed under host tissue, solitary, scattered to gregarious, elongate or irregular in shape, dark brown to black, waxy, easily to remove from host surface, ostiole central, dehiscence by slit. Peridium composed of a single layer of isodiametric cells, thin-walled, dark brown to black. Hamathecium comprising numerous, filiform, aseptate, broad pseudoparaphyses, embedded in a gelatinous matrix. Asci 8-spored, bitunicate, cylindrical to cylindric clavate, ellipsoidal to oblong, apedicellate, apically rounded, with a wide indistinct ocular chamber. Ascospores overlapping or 3–4-seriate, fusiform, oblong to cylindrical, or sometimes falcate to reniform, hyaline, 0–3-septate, mostly non constricted at the septa, septa indistinct, smooth-walled. Asexual morph: see notes (adapted from Hyde et al. 2013).
Type species: Leptopeltis filicina (Lib.) Höhn.
Notes: Leptopeltis is characterised by scattered to gregarious, elongate, dark brown to black ascomata, cylindrical to cylindric clavate asci and fusiform, oblong to cylindrical ascospores. Leptopeltis is a distinct and type genus of Leptopeltidaceae. Molecular data is not available. The type species of Leptopeltis must be re-collected and sequenced.
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