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 Tomentella sublilacina
SynonymsTomentella castanea
Zygodesmus sublilacinus
Tomentella fusca subsp. castanea
BiostatusPresent in region - Exotic
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, adherent,
effused forming small irregularly orbicular or linear areas 1-5 cm across;
hymenial surface tan or chestnut, sometimes with a vinaceous tinge, finely
punctate under a lens, especially towards the centre; margin fibrillose,
thinning out, concolorous, adherenµm Context pallid tan, 100-400 µm thick, basal
layer a narrow zone of mainly parallel hyphae tinted brown, intermediate layer
of mainly erect hyaline hyphae; generative hyphae 4-6 µm diameter, walls 0.2 µm
thick, branched, freely septate, with clamp connections. Hymenial layer to 60 µm
deep, a close palisade of basidia and paraphyses. Basidia subclavate, 30-45 x
6-8 µm,bearing 2-4 spores; sterigmata slightly arcuate, to 6 µm long. Paraphyses
subclavate, 18-28 x 4-6 µm. Spores globose or oval, 7-9 x 6-8 µm, walls sinuate,
sparsely and finely verruculose, tinted umber, 0.25 µm thick, spines to 0.75 µm
long.
Habitat: HABITAT:
Effused on bark of dead branches.
Distribution: DISTRIBUTION: Europe, New Zealand.
Notes: Separated from T. fusca by the lighter colour, adherent
colonies, hyaline hyphae of the intermediate layer and smaller spores.
Collections agree with a specimen from Europe examined in Kew, herbarium, named
by Bourdot T. fusca subsp. castanea. I have followed Donk in
considering the plant as a species, rather than a subspecies of T.
fusca, under which it was placed by Bourdot & Galzin.
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