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 Hymenochaete cinnamomea
SynonymsHymenochaete arida
Hymenochaetella arida
Thelephora cinnamomea
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 resupinate,
perennial, stratose, membranous, adherent, effused forming irregular areas 2-4
cm across; hymenial surface cinnamon, even, delicately velutinate, not creviced;
margin thinning out, concolorous, fibrillose, adherent. Context cinnamon, 1-3 mm
thick, stratose, of numerous setal layers (3-15) with layers of loosely
intertwined hyphae between and a broad tissue of intertwined hyphae at the base;
generative hyphae 4-5 µm diameter, walls 0.5-1 µm thick, pallid yellow. Setal
layers to 95 µm deep, with somewhat scattered setae overlapping into each
context layer; setae acicular, some projecting to 50 µm, 60-90 x 5-7 µm, walls
naked, golden brown near the surface, darker in the context, lumena narrow.
Hymenial layer to 35 µm deep, a close palisade of scanty basidia, abundant
paraphyses, and paraphysate hyphae. Basidia subclavate, 16-20 x 4-5 µm, bearing
4 spores; sterigmata arcuate, slender, to 4 µm long. Paraphyses cylindrical,
tinted, 8-14 x 4-4.5 µm. Paraphysate hyphae to 4 µm diameter, most branched,
hyaline or tinted yellow. Spores suballantoid, 5-6 x 3-3.5 µm, walls smooth,
hyaline, 0.1 µm thick.
Habitat: HABITAT: Bark or decorticated wood of dead branches
associated with a pocket rot.
Distribution: >DISTRIBUTION: Europe, North America, New Zealand.
Notes: Plants bear more setal layers than authentic European specimens
examined in Kew herbarium, but agree in other features, such as the cinnamon
surface colour, context hyphae branched at a wide angle, stratose context, small
suballantoid spores, and absence of a cortex. Paraphysate hyphae may be abundant
or scanty, but are always present, in some plants being so freely developed as
to give the surface a tomentose appearance.
H. cinnamomea, H.
arida, and H. rhabarbarina are related species; for all are
without a cortex, possess a monomitic hyphal system, a context composed of
similar intertwined hyphae, and similar spores. In such stratose species as
H. cinnamomea, H. lignosa, H. tasmanica, and H. vaginata
strata are demarked by layers of persistent paraphyses which usually stain
with aniline blue. They show that each layer represents a growth period, and
afford a useful feature by which stratose species may be separated from those
bearing many rows of overlapping setae, such as H. fusca or H.
magnahypha.
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