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 Hymenochaete villosa
SynonymsStereum phaeum
Hymenochaete strigosa
Hymenochaete phaea
Stereum villosum
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: Hymenophore pileate, annual,
coriaceous. Pilei applanate, flabeiliform, sometimes umbonate or
effused-reflexed, frequently imbricate or fused laterally, 3-7 cm long, with a
radius of 2-5 cm; pileus surface coloured various shades of brown.ferruginous,
umber, or sepia.concentrically sulcate and zoned with bands of different shades
of brown hairs, often radiately sulcate, sometimes radiately plicate, coarsely
tomentose, often strigose, at length becoming naked and black; margin lobed,
fulvous when young; hymenial surface duplicating irregularities of the pileus
surface, radiately ridged, concentrically sulcate, umber, date-brown, or plum
colour, even, tardily creviced when old, margin concolorous or lighter. Context
dark umber and glistening in section, to 200 µm thick, of closely compacted
often cemented parallel hyphae; cortex of darker, parallel, cemented hyphae;
skeletal hyphae 4-5 µm diameter, walls 1-2 µm thick, reddish-brown; generative
hyphae 2.5-3 µm diameter, walls 0.25 µm thick, tinted yellow. Setal layer to 80
µm deep, of 2-3 rows of scattered setae, some projecting to 35 µm; setae
subulate, 35-55 x 5-7 µm, walls naked, rich chestnut, lumena narrow. Hymenial
layer to 30 µm deep, a dense palisade of basidia and paraphyses. Basidia
subclavate, 16-22 x 4-4.5 µm, bearing 4 spores; sterigmata arcuate, slender, to
4 µm long. Paraphyses cylindrical, 10-16 x 3.5-4 µm, walls tinted yellow. Spores
elliptical, apiculate, 3.5-4 x 2-2.5 µm, walls smooth, hyaline, 0.1 µm thick.
Habitat: HABITAT: Bark or decorticated wood of dead
branches and stems associated with a coarse pocket rot.
Distribution: DISTRIBUTION: Java, Malaya, Ceylon, India, Australia, Tasmania, New
Zealand.
Notes: Resembling Stereum illudens in general
appearance, the species may be identified readily since it is the only
Hymenochaete present in the region with applanate or flabelliform
pilei. The pileus surface is coarsely tomentose, concentrically sulcate and
zoned with hairs of different shades of brown, radiately sulcate, and sometimes
plicate. In young plants the tomentum is usually aggregated into strigose tufts,
but as plants age, hyphae become lax and intertwined to form a dense mat which
may attain a depth of 0.5 mm. Finally the tomentum tends to disappear, weathered
plants sometimes becoming naked and almost black. The hymenial surface reflects
the configuration of the pileus surface and exhibits a wide range of colours. At
first ferruginous, it soon becomes date-brown, often with a plum-coloured bloom,
and finally dark umber. Under a lens, sections appear dark brown and glistening.
The context is composed of stout parallel hyphae, closely compacted and
cemented, with a darker cortex formed from parallel hyphae and bearing the
abhymenial hairs. The setal layer is narrow and composed of two or three
overlapping rows of small setae embedded among irregular erect hyphae. Setae are
subulate with often a stout base turned at an angle and parallel with the
context hyphae. Spores are scanty and found only near margins of growing plants.
Choice of a specific name lies between H. villosa and
H. nigricans. Both were published (as Stereum) on the same
page by Leveille. Bresadola claimed they were applied to the same species, but
this I have not been able to verify since the types have not been examined.
Collections match an authentic Leveille specimen of Stereum villosum in
Kew herbarium; and Petch forwarded specimens to Kew herbarium from Ceylon, named
H. nigricans, which are of the same species. The combination
Hymenochaete villosa was published by Bresadola six years before he
used H. nigricans; and as the latter is inappropriate, save for old
weathered plants, I have preferred H. villosa, a combination also used
by Wakefield (1915, p. 368) for an Australian collection in Kew herbarium.
Distribution is based on collections examined in Kew herbarium, filed
under H. nigricans, H. phaea (type ex Bay of Islands, N.Z.), H.
spadicea (type ex Ceylon), H. strigosa (type ex Ceylon), and
H. villosa. Three collections from Tasmania in Kew herbarium are filed
under H. rubiginosa.
Article: Cooke, M.C. (1879). New Zealand fungi. Grevillea 8(46): 54-68.
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