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 Hymenochaete corrugata
SynonymsThelephora corrugata
BiostatusPresent in region - Indigenous. Non endemic
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: Hymenochaete insularis
Berk., Grevillea I: 165, 1873.
Hymenophore
resupinate, annual, membranous, adherent, at first appearing as scattered
orbicular colonies 2-10 mm across, merging to form linear areas to 25 x 3 cm;
hymenial surface cinnamon or umber, sometimes reddish-brown, colliculose, often
rugulose, becoming deeply and finely areolately creviced; margin thinning out,
concolorous or white, tan, bay, or ferruginous, fibrillose, adherent. Context
ferruginous, 90-150 µm thick, of intertwined hyphae often compacted embedding
the setae; generative hyphae 2.5-3 µm diameter, walls 0.5-1 µm thick, golden
brown. Setal layer occupying the entire context, of several overlapping rows of
setae; setae subulate, sometimes geniculated or distorted, some projecting to 35
µm, 45-75 x 10-18 µm, walls reddish-brown, apices verruculose, lumena usually
wide and occasionally exhibiting false septa. Hymenial layer to 30 µm deep, a
close palisade of basidia and paraphyses. Basidia subclavate, 12-16 x 3.5-4 µm,
bearing 2-4 spores; sterigmata slightly arcuate, slender, to 4 µm long.
Paraphyses subclavate, 6-12 x 3-3.5 µm. Spores allantoid, 3-4.5 x 1-1.5 µm,
walls smooth, hyaline, 0.1 µm thick.
Habitat: HABITAT: Bark of dead branches
associated with a white rot.
Distribution: DISTRIBUTION: Europe, Great Britain, North
America, New Zealand.
Notes: Collections agree with authentic
European specimens examined in Kew herbarium. The species may be recognised by
the areolately creviced often rugulose surface and stout, often distorted or
radicate setae with verruculose apices. Spores are allantoid and 3-4.5 x 1-1.5
µm, measurements which agree with European specimens, but are smaller than those
published by Burt (1918b, p. 359) for North American material. The surface
colour ranges from dusky cinnamon to umber or reddish-brown, and the surface may
be colliculose, or when examined under a lens, finely rugulose and velutinate.
Setae vary appreciably in shape and size, and of those embedded in tissues of
the context some may be geniculated, inserted laterally, or strongly radicate. A
few exhibit one or more false septa, accidental bridges across the wide lumena.
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