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 Lachnella nikau
BiostatusPresent in region - Indigenous. Endemic
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Caption: FIG. 188. Lachnella nikau. Habit sketch (a) of pilei attached by bases and of the
rudimentary subiculum; (b) encrusted hair from the pileus surface; (c) elliptical or
obovate spores. |
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: Subiculum annual, white, arachnoid, of a few repent hyphae, forming irregular areas
to 7 x 3 cm. Pilei closely aggregated but remaining distinct, at first globose, becoming
cupulate, ceraceous, brittle, white, drying white, 0.1-0.25 mm diameter, seated upon
narrow bases, pileus surface coarsely strigose with erect abhymenial hairs reaching a
length of 130 µ, tapering from inflated bases (to 10 µ) to long-acuminate apices,
walls hyaline, to 3 µ thick at bases, 0.5 µ near apices, finely and closely crystal
encrusted, margin erect and fimbriate. Context delicate, white, to 20 µ thick, of
closely compacted parallel hyphae, generative hyphae 2-2.5 µ diameter, walls 0.2 µ
thick, hyaline. Hymenial layer to 35 µ deep, a close palisade of basidia and
paraphyses. Basidia clavate, 22-30 x 10-12 µ, bearing 4 spores; sterigmata arcuate,
to 5 µ long. Paraphyses clavate, 16-22 x 7-9 µ. Spores elliptical, slightly obovate
with oblique apiculi, or a few subfusiform, 11-14 x 6-7.5 µ, walls smooth, hyaline,
0.1 µ thick.
Habitat: HABITAT: crowded on bark of dead stipes.
Distribution: TYPE LOCALITY: Piha, Auckland, New Zealand.
DISTRIBUTION: New Zealand.
Notes: Abhymenial hairs are of unusual shape. Narrowly ventricose with inflated bases, they
taper to the long-acuminate apices; walls are hyaline and thickened to 3 µ towards the
base and closely encrusted. Basidia and spores are large, pilei delicate, and the
subiculum is rudimentary.
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