The Families of Mushrooms and Toadstools Represented in the British Isles


L. Watson and M. J. Dallwitz


Cf. Geoglossaceae, Helotiaceae, Leotiaceae?.

Morphology. The fruit-bodies producing asci and ascospores; simple, or compound (often tufted); erect-elongate, unbranched; clavate (the heads often each with a longitudinal groove); clustered to solitary; stipitate; small to medium sized; 2–5(–6) cm high; very dark olive, or green, or blackish; apothecial; producing asci and spores on an exposed hymenium; stromata absent. Asci inoperculate; the asci thin walled. The walls of the asci with J+ or J- pore. The ascospores elongate (often), or ellipsoid; brown.

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

Ecology. The fruit-bodies borne on the ground. Found in broad-leaved woodland and in mixed woodland.

World representation. 8 species. Temperate, widespread.

Classification. Ascomycota; Helotiales.

Illustrations. • Microglossum viride (with Geoglossaceae) (LH). • Microglossum olivaceum (Berkeley).

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.’.