Poria vaillantii (DC.) Cooke 1886
Details
Poria vaillantii (DC.) Cooke, Grevillea 14 112 (1886)
Nomenclature
(DC.) Cooke
DC.
Cooke
1886
112
as 'vaillanti'
ICN
species
Poria vaillantii
Classification
Descriptions
Poria vaillantii (DC.) Cooke 1886
ELAEOCARPACEAE. Elaeocarpus dentatus: Auckland, Waikaretu, 120 m. LAURACEAE. Beilschmiedia tawa: Auckland, Kawau Island, 10 m. MELIACEAE. Dysoxylum spectabile: Auckland, Whitianga-Coromandel Road, 70 m. PROTEACEAE. Knightia excelsa: Auckland, Waikaretu, 120 m. UNKNOWN HOST. South Australia, Blackfellows Creek.
Hymenophore annual, adherent, membranous, effused forming linear areas 6-10 x 2-3 cm, 1-3 mm thick. Hymenial surface white, pallid cream, or wood colour, irregular, appearing irpiciform, not creviced; margin thinning out, a delicate white zone 2-5 mm wide when young, sometimes fertile to the edge, fibrillose, irregular, sometimes with white rhizomorphs. Pores not in strata, irregular in size and shape, often oblique, 1-2 per mm in young plants, 0.5-1.5 mm diameter in old, to 0.8 mm deep; dissepiments 50-150 µm thick, tapering, toothed. Context white, 50-200 µm thick, of intertwined hyphae embedding crystals; generative hyphae 3.5-4 µm diameter, walls 0.25 µm thick, branched, septate, without clamp connections. Hymenial layer to 30 µm deep, a close palisade of basidia and paraphyses. Basidia subclavate, 14-22 x 4-7 µm, bearing 4 spores; sterigmata erect, to 4 µm long. Paraphyses subclavate, 10-16 x 4-5 µm. Spores narrowly elliptical, or obliquely apiculate, 5-7 x 3-4 µm, walls smooth, hyaline, 0.1 µm thick.
DISTRIBUTION: Europe, North America, Australia, New Zealand.
HABITAT: Decorticated fallen trunks, branches and worked timber, associated with a white rot.
Specific features are the monomitic hyphal system without clamp connections on the generative hyphae, large-diameter, often irpiciform pores, and elliptical spores. Plants resemble closely in macrofeatures collections of P. vaporaria from Sweden. The latter differs in its dimitic hyphal system, presence of clamp connections on the generative hyphae, and allantoid spores 4 x 1.5 µm. Specimens agree with European collections of the species in Kew herbarium, differing mainly in that rhizomorphs are not so well developed and in one collection are wanting. Australian records of the presence of P. vaporaria were based on specimens of P. versipora, judged from collections examined in Kew herbarium. The former has not been found in this botanical region.
TYPE LOCALITY: Europe.
Taxonomic concepts
Poria vaillantii (DC.) Cooke 1886
Poria vaillantii (DC.) Cooke (1886)
Global name resources
Collections
Metadata
1cb19cbf-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
23 August 2012