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| The families of mushrooms and toadstools represented in Britain and Ireland |
~Gomphidiaceae, Suillaceae
Morphology. The fruit-bodies producing basidia and basidiospores; angiocarpic; a globose or tuberiform gasterocarp (with no columella); small to large; 2–8 cm across; dirty yellowish-brown (to olive brown), or blackish; garlic-scented. The gasterocarp without a columella. The hymenophoral trama bilateral. The basidia ‘unmodified’. The basidiospores allantoid to sub-globose, thin-walled, stramineous; statismosporic; smooth.
The hyphae without clamp connections (?). 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 inflated. Spaerocysts not occurring among the context hyphae.
Chemical reactions. Yielding prenylated phenols and quinones.
Ecology. The fruit-bodies subterranean to not subterranean (usually partly buried, on sandy soil); when epigeal, borne on the ground. Associated with broad-leaved trees. Especially under beech. Found in broad-leaved woodland and in mixed woodland.
Representation in Britain and Ireland. 6 species in Britain; Rhizopogon.
World representation. 158 species; genera 4. Widespread in the temperate northern hemisphere, introduced with pines in the southern.
Classification. Basidiomycota; Basidiomycetes; Agaricomycetidae; Boletales.
Comments. Exemplified by the garlic-scented Rhizopogon luteolus.
Illustrations. • Rhizopogon luteolus (LH). RHIZOPOGONACEAE. Rhizopogon luteolus. 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’.
