The Families of Mushrooms and Toadstools Represented in the British Isles


L. Watson and M. J. Dallwitz


Formerly in Ceratobasidiaceae.

Anamorphic forms occurring (Oliveorhiza).

Morphology. The fruit-bodies producing basidia and basidiospores; flattened and more or less appressed to the substrate or encrusting, with the hymenium on the outside (thin, waxy, resupinate). The basidia ‘unmodified’; of characteristic form, being pyriform with very stout sterigmata (with long, stout sterigmata, probasidium absent); maturing at different times. The basidiospores ballistosporic; inamyloid.

The hyphal walls lamellate, with a thin, electron-dense outer layer and a relatively thick, electron-transparent inner layer.

Chemical reactions. The context hyphae not xanthochroic (?).

British representation. 4 species in Britain; Oliveonia.

World representation. 4 species, or 5 species; genera 2 (?). “Widespread”.

Classification. Basidiomycota; Basidiomycetes; Tremellomycetidae; Ceratobasidiales.

Comments. This inadequate description lacks the informaton to justify the recent removal of Oliveonia from Ceratobasidiaceae, involving its transfer from Agaricomycetidae to Tremellales.

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.’.