Pseudonectriella
Pseudonectriella Petr., Sydowia 13(1-6): 127 (1959)
Hypocreomycetidae, Hypocreales, Niessliaceae, Pseudonectriella
Index Fungorum number: IF 4461; 1 morphological species.
Saprobic or parasitic on wood. Sexual morph: Ascomata perithecial, solitary, superficial, turbinate, obpyriform to subglobose, or deep collapsing as cupuliform, 3–8-loculate, dark brown to black, membranaceous, tuberculate, glabrous, ostioles inconspicuous, periphysate. Peridium composed of membranaceous, brown to pale brown to hyaline cells of textura globulosa to textura angularis to textura prismatica. Paraphyses rare, filiform, septate. Asci 8-spored, unitunicate, cylindrical, pedicellate, apex rounded, apical ring absent, evanescent. Ascospores uni- or bi-seriate, hyaline, ellipsoidal to oval, 0–1-septate, smooth-walled, guttulate. Asexual morph: Coelomycetous. Conidiomata superficial, turbinate, obpyriform to subglobose, or deep collapsing as cupuliform, 3–8-loculate, dark brown to black, membranaceous, tuberculate. Peridium composed of membranaceous, brown to pale brown cells of textura globulosa to textura angularis to textura prismatica, becoming hyaline towards inner conidiogenous region. Conidiophores erect, hyaline, cylindrical to subcylindrical, unbranched. Conidia terminal, oval to ellipsoidal, aseptate, hyaline, smooth-walled, guttulate (copied from Huang et al. 2021).
Type species: Pseudonectriella ahmadii Petr., Sydowia 13(1-6): 128 (1959)
Notes: The monotypic Pseudonectriella is typified by P. ahmadii which has black ascomata, cylindrical asci and ellipsoidal ascospores (Petrak 1959). Lumbsch & Huhndorf (2007) placed this genus in Niessliaceae. However, no sequence data is available for the Pseudonectriella (copied from Huang et al. 2021).
Species illustrated in this entry:
Pseudonectriella ahmadii Petr.
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