Hypocreales » Niessliaceae


Valetoniellopsis Samuels & M.E. Barr, Can. J. Bot. 75(12): 2175 (1998) [1997]

Hypocreomycetidae, Hypocreales, Niessliaceae, Valetoniellopsis

Index Fungorum number: IF 27817; 1 species with sequence data.


Saprobic on leaves. Sexual morph: Ascomata perithecial, solitary or scattered, superficial, globose to subglobose, or collapsing as cupuliform, reddish brown or brown, multi-loculated, membranaceous, tuberculate, glabrous or with brown, septate, lax setae at apex, ostiolate, periphysate. Peridium composed of membranaceous, brown to hyaline cells of textura angularis to textura prismatica. Paraphyses absent. Asci 8-spored, unitunicate, clavate, pedicellate or sessile, apex rounded or blunt, apical ring absent, evanescent. Ascospores uni-or bi-seriate, hyaline, cylindrical to oblong, straight or slightly curved, 1-septate, smooth-walled, guttulate. Asexual morph: Hyphomycetous. Conidiophores mononematous, macronematous, hyaline, unbranched, straight. Conidia terminal, ellipsoidal, aseptate, hyaline, smooth-walled, guttulate (copied from Huang et al. 2021).



Type species: Valetoniellopsis laxa Samuels & M.E. Barr, Can. J. Bot. 75(12): 2175 (1998) [1997]





Notes: The monotypic Valetoniellopsis is typified by V. laxa and placed in Niessliaceae (Samuels & Barr 1997). It is similar to Circinoniesslia with setose ascomata and acremonium-like asexual morph (Samuels & Barr 1997). Subsequently, the type V. laxa (CBS:191.97) was sequenced and nested in Niessliaceae (Tang et al. 2007, Vu et al. 2019). In the study by Huang et al. (2021), Valetoniellopsis is sister to Trichosphaerella in Niessliaceae (copied from Huang et al. 2021).



Species illustrated in this entry:

Valetoniellopsis laxa Samuels & M.E. Barr



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