The Families of Mushrooms and Toadstools Represented in the British Isles

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L. Watson and M. J. Dallwitz

Hyphodermataceae

Morphology. The fruit-bodies producing basidia and basidiospores; persistent; flattened and more or less appressed to the substrate or encrusting, with the hymenium on the outside. The hymenium with pegs or spinose (or spinose), or smooth. The hymenial layer not readily separable from the supporting flesh. The hymenium not thickening. Cystidia (hymenial) present (usually prominent); usually leptocystidia, or lamprocystidia, or leptocystidia and lamprocystidia (but no lycocystidia). The basidia ‘unmodified’; not of the ceratobasidialean type (q.v.). The basidiospores ballistosporic; hyaline; smooth, or ornamented (then verrucose); inamyloid.

The hyphal walls lamellate, with a thin, electron-dense outer layer and a relatively thick, electron-transparent inner layer. The hyphae monomitic. The generative hyphae not inflated.

Chemical reactions. The context hyphae not xanthochroic; not releasing green pigment when treated with KOH (?).

Ecology. The fruit-bodies on dead wood, or on living wood (?).

British representation. 49 species in Britain; Brevicellicium, Bulbillomyces, Coronicium, Elaphocephala, Galzinia, Gloeohypochnicium, Hyphoderma, Hypochnicium, Intextomyces, Nodotia, Subulicium, Subulicystidium.

World representation. 129 species; genera 22. “Widespread”.

Classification. Basidiomycota; Basidiomycetes; Agaricomycetidae; Polyporales (formerly Stereales).

Illustrations. • Hyphoderma roseocremeum (Petersens).


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. delta-intkey.com’.

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