Hypocreales » Niessliaceae


Niesslia Auersw., in Gonnermann & Rabenhorst, Myc. Europ. Pyren. 5-6: 30 (1869)

Hypocreomycetidae, Hypocreales, Niessliaceae, Niesslia

Index Fungorum number: IF 3506; Facesoffungi number: FoF 01127; 98 morphological species (Species Fungorum 2020); 11 species with sequence data.


Saprobic on leaves in terrestrial habitats. Sexual morph: Ascomata dark brown to black, perithecial, solitary, superficial, cupuliform, membranaceous, tuberculate, collabent when dry, surround by brown, septate setae, with spiky termination, with periphysate ostiole. Peridium thick, outer layer hard, composed of dark tissues, basal part mixed with host cells; inner layer formed from brown to dark brown cells of textura angularis. Hamathecium of filiform, hyaline, septate paraphyses or paraphyses absent. Asci 8-spored, unitunicate, oblong to clavate, pedicellate, apical ring present or absent, evanescent at maturity. Ascospores hyaline, ellipsoid to fusiform, aseptate to 1-septate, slightly curved, smooth, mostly with guttules. Asexual morph: Undetermined (adapted from Maharachchikumbura et al. 2016).


Type species: Niesslia chaetomium (Ces. & De Not.) Auersw., in Gonnermann & Rabenhorst, Myc. Europ. Pyren. 5-6: 30 (1869)


Notes: Niesslia is characterized by tuberculate perithecia, surrounded by brown, septate setae, clavate asci and filiform ascospores (Gonnermann & Rabenhorst 1869, Gams et al. 2019). The members of Niessliaceae nest in this family based on multi-gene analysis.



Species illustrated in this entry:

Niesslia exosporioides (Desm.) G. Winter




Gams W, Stielow B, Gräfenhan T, Schroers HJ. 2019 – The ascomycete genus Niesslia and associated monocillium-likeanamorphs. Mycological Progress 18, 5–76

Gonnermann W, Rabenhorst L. 1869 – Mycologia europaea. Abbildungen sämmtlicher Schwämme Europas. Neustadt und Dresden 5–6, 1–30

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016 – Families of Sordariomycetes. Fungal Diversity 79, 1–317


About Sordariomycetes

The webpage Sordariomycetes provides an up-to-date classification and account of all genera of the class Sordariomycetes.


Published by the Mushroom Research Foundation 
Copyright © The copyright belongs to the Mushroom Research Foundation. All Rights Reserved.