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 Hymenochaete cervina
SynonymsHymenochaete corticolor
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
subpileate when umbonate-sessile, or resupinate, probably perennial, woody
coriaceous, loosely attached, forming irregularly orbicular colonies 2-10 mm
diameter, or merging to form linear areas 2-3 x 1-2.5 cm; pilei reduced to
thickened upper edges of specimens growing vertically, naked, black,
longitudinally striate, 1-1.5 mm thick; hymenial surface pallid ferruginous, or
cinnamon, not creviced, even; margin usually abrupt, sometimes thinning out,
crenate, concolorous, free. Context ferruginous, black next the substratum,
0.3-1 mm thick, of mainly erect hyphae embedding scattered setae and numerous
large crystals; skeletal hyphae 3-4 µm diameter, walls to 1 µm thick, golden
brown; generative hyphae 2.5-3 µm diameter, walls 0.2 µm thick, hyaline. Setal
layer occupying the entire fructification, of numerous overlapping rows of setae
sometimes arranged in irregular strata; setae subulate, some projecting to 60
µm, 65-95 x 9-12 µm, walls naked or encrusted, ferruginous, lumena narrow.
Hymenial layer to 35 p deep, a close palisade of basidia and paraphyses. Basidia
subclavate, 14-22 x 3.5-4 µm, bearing 2-4 spores; sterigmata slightly arcuate,
slender, to 6 µm long. Paraphyses cylindrical, 8-15 x 2.5-3 µm. Spores
suballantoid, 5-6.5 x 2-2.5 µm, walls smooth, hyaline, 0.1 µm thick.
Habitat: HABITAT: Living trunks associated with a pocket rot.
Distribution: DISTRIBUTION: North America, West Indies, New Zealand.
Notes: The collection listed agrees with authentic specimens
examined in Kew herbarium as to macrofeatures and size, the shape and
distribution of setae, and size and shape of spores. It differs in that
specimens were collected on dead wood of an axe blaze on a living trunk, whereas
North American plants grow upon bark of living trunks.
The species
is difficult to place within a key; for fructifications, although often
resupinate, are not uncommonly umbonate-sessile with the upper margin (of those
growing on upright trunks) thickened into a black glabrous pileus. The context
is composed of erect hyphae embedding setae arranged in overlapping rows,
sometimes in strata; and, as setae are present throughout the fructification a
context, present in most pileate species, is wanting. The plant therefore
belongs to Section III, and has been treated as a stratose species with
rudimentary pilei. Scattered through the context are numerous coarse crystals,
or cavities in which they once were present. Projecting setae are usually
encrusted with crystals, and sometimes enmeshed in hyphal sheaths.
Article: Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005). Fungi on trees and shrubs in New Zealand. Fungi of New Zealand. Ngā Harore o Aotearoa 4: xi + 437 p. Hong Kong: Fungal Diversity Press.
Description: Type: Lignicolous Fungi; Description: Basidiomata perennial, subpileate or resupinate, leathery-woody, loosely attached to the substrate and forming irregularly circular colonies 2–10 mm in diameter or merging to form linear areas 20–30 × 10–25 mm. Pilei reduced to thickened (1–1.5 mm) upper edges of basidioma growing vertically. Pileus surface glabrous, concentrically striate, black. Pore surface even, reddish brown to cinnamon brown, margin crenate, concolorous. Context reddish brown, black adjacent to the substratum, 0.3–1 mm thick. Setae in numerous overlapping rows, subulate, naked or encrusted, reddish brown, 65–95 × 9–12 μm. Basidiospores suballantoid, 5–7 × 2–3 μm, smooth, hyaline.
Distribution: Distribution: Otago Lakes.; 1st Record: Cunningham (1957: as Hymenochaete corticolor).
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