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 Clavaria cupreicolor
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge)
Caption: Fig 21-22 Clavaria cupreicolor. 21, basidium (not to scale): note stout sterigmata, and clamp
connection below basidium base. 22, spores. TENN no. 43696. Scale bar = 5 µm.< |
Article: Petersen, R.H. (1988). The clavarioid fungi of New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin 236: 170 pp. Wellington:.
Description: Fruit bodies up to 60 x 3 mm, simple clubs occurring singly or scattered, fusiform to
cylindrical. Club of a worn copper colour ("cacao-brown"), appearing opaque-waxy, equal;
apex rounded. Stipe minutely silky, with transverse reflective patterns appearing as stripes,
some more orange-brown than the club ("hazel"), inserted nakedly into substrate. Taste and
odour negligible.
Tramal hyphae of club hardly inflated, thin-walled, parallel, clampless, adherent; secondary
septa rare. Subhymenium well-developed, pseudoparenchymatous. Basidia (Fig. 21)
narrowly clavate, prominently clamped, 4-sterigmate; contents homogeneous when young,
multiguttulate when mature. Hymenium agglutinated when dry.
Spores 6.5-7.2 x 6.1-6.5 µm (E = 1.06-1.18; Em = 1.12; Lm= 7.04 µm), subglobose, thin-walled, smooth; contents minutely
multiguttulate to opalescent when mature; hilar appendix
abrupt, papillate-truncate.
Notes: Basidial clamps in this taxon are extraordinarily obvious and prominent. They are exactly as
reported previously (Petersen 1979) for Clavaria luteostirpata and their presence extends to
the second or third subhymenial septum below the basidium when observable.
Agglutination of hymenium and adherence of tramal hyphae are especially well shown in this
species. Mature basidia can be seen to have slime clinging to their apices and the bases of
sterigmata as though the hymenium had been covered by such a thin layer. It is remarkable
that the basidial clamp should be so easily observed in an agglutinated hymenium.
Spores seem to be standard for this complex of taxa, but apparently the guttules never
coalesce to form a single large guttule which usually marks mature spores in other taxa.
As usual, fruit body colour is an easily recognisable character, but tissue agglutination and
prominent basidial clamps are good supporting features.
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