Corticium glaucocanum G. Cunn. 1963
Details
Corticium glaucocanum G. Cunn. 1963
Nomenclature
G. Cunn.
G. Cunn.
1963
330
ICN
Corticium glaucocanum G. Cunn. 1963
NZ holotype
species
Corticium glaucocanum
Classification
Descriptions
Corticium glaucocanum G. Cunn. 1963
VIOLACEAE. Melicytus ramif/orus: Wellington, Totara Reserve, Pohangina Valley, 100 m, type collection, P.D.D. herbarium, No. 17429.
Hymenophore annual, arachnoid, adherent, effused forming irregular areas to 15 x 3 cm; hymenial surface dingy white, or bluish-grey, somewhat resembling hoar frost when fresh, drying to a tenuous barely visible film, even, not creviced; margin thinning out, white, arachnoid, adherent. Context white, 60-80 µ thick, basal layer of parallel hyphae collapsed and cemented when old, intermediate layer wanting; generative hyphae 3.5-4 µ diameter, walls 0.2 µ thick, naked, without clamp connections. Hymenial layer to 25 µ deep, a loose palisade of basidia, paraphyses, and paraphysate hyphae. Basidia cylindrical with slightly inflated bases, or narrowly ovate, 16-20 x 6-7 µ, bearing 4 spores; sterigmata arcuate, slender, to 6 µ long. Paraphyses ovate or pyriform; 9-11 x 5-6 µ. Paraphysate hyphae cylindrical or tapering slightly to rounded apices, 16-20 x 5-6 µ, abundant. Spores globose or subglobose, 5-6 µ diameter, walls smooth, hyaline, 0.2 µ thick.
TYPE LOCALITY: Pohangina Valley, Wellington, New Zealand.
DISTRIBUTION: New Zealand.
DISTRIBUTION: New Zealand.
HABITAT: Effused on decayed decorticated wood.
Hymenophorum araneum, effusum, membrana tenui; superficie alba vel griseo-veneta, aequa, non rimosa. Hyphae generatoriae afibulatae, 3.5-4 µ diam. Stratum medium contextus abest. Basidia cylindricalia vel angusto ovata, 16-20 x 6-7 µ, 4 sporis. Sporae globosae vel subglobosae, 5-6 µ, parietibus levibus, hyalinis. On decayed decorticated wood of Melicytus ramiflorus, Pohangina Valley, Wellington, N.Z.
Characters by which the species may be recognised are the small, smooth, globose spores, ovate or slightly pyriform basidia bearing four spores, cylindrical, abundant paraphysate hyphae, delicate adherent hymenophore and absence of an intermediate layer. Resembling hoar frost when fresh, when dried the hymenophore is barely visible, save under a lens.
Taxonomic concepts
Global name resources
Collections
Notes
typification
VIOLACEAE. Melicytus ramiflorus: New Zealand, Wellington, Totara Reserve, Pohangina Valley, 100 m, type collection, PDD 17429.
Metadata
1cb184ca-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
13 July 1998
15 December 2003