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 Corticium hydnans
BiostatusAbsent from region
Article: Cunningham, G.H. (1963). The Thelephoraceae of Australia and New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin 145: 359 p. Wellington:.
Description: Hymenophore annual,
membranous-ceraceous, adherent, effused forming linear areas to 20 x 5 cm;
hymenial surface buff, becoming reddish-brown, deeply areolately creviced when
colliculose; margin thinning out, fibrillose, adherent, concolorous. Context
cream, 120-200 µm thick, basal layer of a few repent hyphae, intermediate layer
of loosely arranged erect hyphae; generative hyphae 2-2.5 µm diameter, walls
0.25 µm thick, naked, with clamp connections. Hymenial layer to 20 µm deep, a
close palisade of basidia, paraphyses, and paraphysate hyphae. Basidia clavate,
10-14 x 4.5-5 µm, bearing 4 spores; sterigmata erect, slender, to 5 µm long.
Paraphyses subclavate, scanty, 8-10 x 3.5-4 µm. Paraphysate hyphae filiform,
projecting to 10 µm, abundant. Spores suballantoid or pip-shaped, 9-10 x 4.5-5
µm, walls smooth, hyaline, 0.2 µm thick.
Habitat: HABITAT: Effused on bark or
decorticated dead branches.
Distribution: DISTRIBUTION: North
America, Australia.
Notes: Close to C. scutellare, differing in
the reddish-brown colour of the hymenial surface, narrower context hyphae,
smaller differently shaped basidia, and pip-shaped spores. The surface becomes
deeply areolately creviced, when segments tend to lift, giving the surface a
colliculose appearance.
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