Neoascochyta
Neoascochyta Qian Chen & L. Cai, in Chen et al., Stud. Mycol. 82: 198 (2015).
Index Fungorum number: IF 814064 ; Facesoffungi number: FoF 07462 , 13 morphological species (Species Fungorum 2022), 13 species with molecular data.
Saprobic on leaf. Sexual morph: Ascomata pseudothecial immersed or erumpent, solitary or confluent, globose to subglobose, ostiolate. Asci cylindrical to subclavate, slightly curved, short pedicellate or sessile, 8-spored, bitunicate. Ascospores cylindrical to ovoid, ellipsoidal, hyaline, 1- septate, symmetrical or asymmetrical, constricted at the septum, 2-seriateor irregular uniseriate. Asexual morph: Conidiomata pycnidial, globose to sub globose, or irregularly shaped, superficial on or immersed into the agar, solitary or confluent, ostiolate, sometimes with a short neck. Pycnidial wall pseudoparenchymatous, 2–7-layered, outer wall pigmented, thick. Conidiogenous cells phialidic, hyaline, smooth, globose to flask-shaped, short obpyriform, or ampulliform to doliiform. Conidia variable in shape, hyaline, smooth- and thin-walled, i.e. fusoid to cylindrical, obclavate-ovoid to ellipsoidal, incidentally slight curved, uniseptate or aseptate, eguttulate or guttulate (adapted from Chen et al. 2015).
Type species: Neoascochyta exitialis (Morini) Q. Chen & L. Cai
Notes: Neoascochyta is characterised by pseudothecial ascomata, cylindrical to subclavate asci, and cylindrical to ovoid, hyalineuniseptate ascospores. The asexual morph is coelomycetous and is characterised by pycnidial conidiomata, pseudoparenchymatous wall, obpyriform, or ampulliform to doliiform conidiogenous cells and hyaline fusoid to cylindrical, obclavate-ovoid to ellipsoidal conidia. Neoascochyta morphologically resembles Ascochyta, but is phylogenetically distinct. Molecular markers available for Neoascochyta are ITS, LSU, SSU, BTUB and RPB2.
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