UNKNOWN HOST. Queensland. Bunya Mountains, J. B. Cleland, No. 23 (type collection of Poria vinaceo-rosea).

Hymenophore annual, adherent, membranous, fragile, effused forming irregular areas to 10 cm across, 0.5-1 mm thick. Hymenial surface pallid pink, sometimes lavender, or grey; margin white, arachnoid, thinning out, adherent. Pores not in strata, round or irregularly so, sometimes scattered in small groups, 3-4 per mm, 80-150 µm diameter, 0.5 mm or less deep; dissepiments equal, not toothed, 50-80 µm thick. Context pallid pink, or grey, 50-150 µm thick, of loosely intertwined mainly erect hyphae; generative hyphae 6-10 µm diameter, branched at a wide angle, septate, without clamp connections, walls 0.2 µm thick, coated with coarse or fine granules of mucilage. Hymenial layer to 15 µm deep, a close palisade of basidia and paraphyses. Basidia subclavate, 8-14 x 4-5 µm, bearing 4 spores; sterigmata erect, to 3 µm long. Paraphyses subclavate, 6-12 x 3.5-4 µm. Spores elliptical, some cylindrical, 4-4.5 x 1.5-2 µm, walls smooth, hyaline, 0.1 µm thick.

DISTRIBUTION: Europe, North America, Australia.

HABITAT: Decayed wood, associated with a white rot.

Colour is produced by granules of mucilage covering walls of the context hyphae and basidia. Poria viridans is a form in which the colour is more pronounced; and P. griseo-alba one with little colour. In microfeatures all three are identical. The collection from Australia is unusual in that part had developed upon the hymenial surface of a decayed specimen of Daedalea palisoti. Hyphae are of large diameter, branch at a wide angle, and walls are encrusted with granules of mucilage. Clamp connections are absent, a feature that together with the monomitic hyphal system aids in identification of the species.

TYPE LOCALITY: Europe.