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| The families of mushrooms and toadstools represented in Britain and Ireland |
Anamorphic forms occurring.
Morphology. The fruit-bodies producing asci and ascospores; simple; erect-elongate, unbranched; capitate (drum-stick shaped); solitary (but often grouped); stipitate; discrete; tiny to small; about 5–10 mm high in C. corvina; cleistothecial (the ascoma formed from coiled initials); producing asci and spores on an exposed hymenium; ascus-bearing hymenial layer everted; stromata absent. The asci more or less globose. The ascospores oblate or allantoid; ornamented (pitted or reticulate).
The hyphae without clamp connections.
Ecology. Saprophytic. Coprophilous, or keratinophilic (often on rotting feathers, hair, horns, hooves, owl pellets). The fruit-bodies borne on the ground.
Representation in Britain and Ireland. About 10 species in Britain; about 9 genera - Onygena, etc.
World representation. About 60 species; genera about 24.
Classification. Ascomycota; Ascomycetes; Eurotiomycetidae; Onygenales.
Comments. Related families include dermatophytes causing tinea in humans.
Illustrations. • Onygena corvina (LH). ONYGENACEAE. Onygena corvina. Sunesen & Dahlstrøm, in Lange & Hora (1965).
We advise against extracting comparative information from the descriptions. This is much more easily achieved using the DELTA data files or the interactive key, which allows access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa. See also Guidelines for using data taken from Web publications.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2008 onwards. The families of mushrooms and toadstools represented in Britain and Ireland. Version: 5th August 2019. delta-intkey.com’.
