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Page number:81 
Remarks (public):The species is easily recognized even by the naked eye, partly because of the colour and partly because of the characteristic crater-like holes in the hymenium. The holes are formed by the fruitbody excreting hanging drops where no hymenium is developed. With a lens, the species may be recognized by its numerous projecting, hairlike cystidia.
Amphinema tomentellum (Bres.) M.P. Christ. is according to Bourdot & Galzin (1928), who have seen authentic material, very close to A. byssoides. There is no material in the Bresadola herbarium in Stockholm. We suppose that it is only a form of A. byssoides. It is reported from Denmark (M.P. Christiansen 1960, p. 229) but not from the other Nordic countries.
Description type:Non-original description 
Description:Amphinema byssoides (Fr.) John Erikss., Symb. Bot. Upsal. 16:1 p. 112, 1958; Thelephora byssoides Fr., Syst. mycol. I: 452, 1821.
Fruitbody resupinate, loosely attached to the substrate, in some cases almost athelioid (i.e. a ± detachable pellicula), edge usually with hyphal strands and rhizomorphs, hymenium very finely velvety due to projecting cystidia, here and there interrupted by crater-like depressions, the whole fruit-body light ochraceous yellow,when young lighter, more creamy in colour.
Hyphal system monomitic with intertangled, pale yellowish hyphae, 3-4 µm in diameter, with thin or somewhat thickened walls and distinct clamps.
Basidia clavate, rarely somewhat constricted, 20-25 x 4-5 µm with four sterigmata.
Cystidia numerous, hyphal, projecting from 50 to 70 µm, totally 75-125 x 4-6 µm, with septa and clamps, finely encrusted with thin, flat, projecting crystals, and small angular grains.
Spores ellipsoid, smooth, with thickened walls, non-amyloid but stained in cotton blue (± red in phase-contrat), 4-4,5 x 2-2,5 µm.
Habitat. On dead coniferous wood and debris, mainly in coniferous forests.
Distribution. Common and widespread in coniferous forests of Cladina or Hylocomium-type where it is one of the characteristic fungal species. It may also occur in poor deciduous forest. It is apparently not a genuine wood-inhabiting species, but, like the genus Piloderma actually belonging to humus and litter, such as needles, leaves, twigs, bark, etc., while the fruitbodies mostly develop on rotten wood.
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