The Families of Mushrooms and Toadstools Represented in the British Isles

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L. Watson and M. J. Dallwitz

Niaceae

Morphology. The fruit-bodies producing basidia and basidiospores; clustered, or solitary; angiocarpic; a globose or tuberiform gasterocarp (very small, subglobose, anchored in the substrate with a minute pedicel); tiny; 0.1–0.3 cm across; brightly pigmented to not brightly pigmented; white or whitish, or yellowish-brown, or pink, or orange (finally, this being the maturation sequence). The gasterocarp without a columella (the gleba homogeneous or with small locules and no real hymenium, mucilaginous at maturity). The peridium dehiscent; opening irregularly. The basidia ‘unmodified’; bearing 4–8 apical basidiospores, but without sterigmata, the spores attached via short cylindrical projections from their bases. The basidiospores appendaged, with a slender, flexible, hyaline appendage; statismosporic; hyaline.

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

Ecology. Marine.

British representation. 1 species in Britain (N. vibrissa); Nia.

World representation. 2 species; genera 1. Widespread in the northern hemisphere.

Classification. Basidiomycota; Basidiomycetes; Agaricomycetidae; Agaricales (?).

Comments. See Mycologia 51: 874, 1959.


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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