|
 Hymenochaete contiformis
BiostatusPresent in region - Indigenous. Non endemic
Article: Cunningham, G.H. (1957). Thelephoraceae of New Zealand. XIV. The genus Hymenochaete. Transactions of the Royal Society of New Zealand 85(1): 1-51.
Description: Hymenophore resupinate, annual, membranous, adnate, at first appearing as numerous small
elliptical colonies 1-2.5 cm long, merging to form effused linear areas 5-20 x 1-2.5 cm.
Hymenial surface at first olivaceous, becoming reddish-brown, velutinate, tardily laterally
creviced; margin thinning out, adnate, fibrillose, fulvous or concolorous. Context ferruginous,
70-130 µ thick, of mainly upright hyphae becoming partly cemented and somewhat cellular
when old, embedding setae and coarse irregular crystals; hyphal system monomitic;
generative hyphae 2-2.5 µ diameter, walls 0.5 µ thick, golden yellow, branched, septate. Setal
layer at first confined to a single row arising from the abhymenial zone, in older plants
composed of 3-5 overlapping irregular rows; setae projecting to 140 µ, acicular, 95-190 x 8-12 µ, walls naked, reddish-brown, sometimes
embedded in hyphal sheaths, lumina narrow.
Hymenial layer to 30 µ deep, a close palisade of basidia and paraphyses. Basidia subclavate,
18-24 x 5-6 µ, 4-spored; sterigmata arcuate, slender, to 7 µ long. Paraphyses subclavate,
shorter and narrower than the basidia. Spores suballantoid, 8-9 x 3.5-5 µ, walls smooth,
hyaline, 0.1 µ thick.
Habitat: HABITAT: Effused on bark of dead branches associated with a pocket rot.
Distribution: DISTRIBUTION: New Zealand
Notes: Separated from other species placed under Section III by the large setae and spores. At first
fructifications consist of a thin cemented layer lying upon the substratum. From this the setae
arise; at first in a single row, in older plants setae are arranged in several overlapping rows
embedded in intertwined hyphae. The hymenial surface of young plants is olivaceous with a
narrow fulvous border; in older specimens, because of the projecting setae it becomes
velutinate and reddish-brown with a reddish tinge. Spores vary in form, even in the same
collection. They may be elliptical or suballantoid, and in diameter range from 3-5 µ to 4-5 µ,
though fairly constant as to length.
|