The Families of Mushrooms and Toadstools Represented in the British Isles


L. Watson and M. J. Dallwitz


Morphology. The fruit-bodies producing asci and ascospores; large, more or less globose (thick walled, solid, the asci forming in marbled veins interspersed with sterile tissue, interascal tissue absent); gymnocarpic; cleistothecial; stromata absent. The asci cylindrical, persistent; asci inoperculate. The walls of the asci not staining blue with iodine. The ascospores globose; ornamented; pale brown, or hyaline; simple.

The hyphae without clamp connections. The hyphal walls lamellate, double layered, with both layers electron dense.

Ecology. Saprophytic. The fruit-bodies subterranean, or subterranean to not subterranean (sometimes emergent); if more or less epigeal, borne on the ground. Seemingly associated especially with Helianthemum and Cistus.

British representation. 1 species in Britain (T. arenaria); Terfezia.

World representation. 20 species; genera 4. Widespread, especially in dry conditions.

Classification. Ascomycota; Ascomycetes; Pezizomycetidae; Pezizales.

Comments. Edible.

To view the illustrations with captions giving names in current use, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, distributions of character states within any set of taxa, source references, and other relevant material.

Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2008 onwards. The families of mushrooms and toadstools represented in the British Isles. Version: 6th March 2015.’.