UNKNOWN HOSTS. Tasmania, Cascades, Hobart, type collection (herb. Cleland). Victoria, Sherbrooke Forest, Dandenong Ranges.

Hymenophore biennial or perennial, loosely attached, effused forming irregular linear areas 3-7 x 2-5 cm, 2-5 mm thick, obscurely stratose. Hymenial surface even, dull white drying dingy buff, not creviced; margin abrupt, 1-3 mm wide, white, fibrillose, adherent, base almost black. Pores in 2-3 vague layers, round or subangular, 4-5 per mm, 50-150 µm diameter, 1-2 mm deep in each layer, stuffed when old; dissepiments 50-100 µm,thick, equal, at first finely velutinate at apices, becoming even. Context dull white, 0.5-1 mm thick, of densely intertwined hyphae embedding numerous crystals; skeletal hyphae 2.5-3 µm diameter, lumena almost obliterated, sparsely branched, irregularly waved, aseptate ; generative hyphae 2-2.5 µm diameter, walls 0.25 µm thick, branched, septate, with abundant clamp connections. Hymenial layer to 16 µm deep, a close palisade of basidia and paraphyses. Basidia subclavate, 8-12 x 3.5-4 µm, bearing 4 spores; sterigmata erect, to 4 µm long. Paraphyses subclavate, 6-10 x 3-3.5 µm. Spores cylindrical or allantoid, 3-3.5 x 1-1.5 µm, walls smooth, hyaline, 0.1 µm thick.

DISTRIBUTION: Australia, Tasmania.

HABITAT: Decorticated fallen trunks, associated with a white rot.

Although the type is sterile, the collection from Victoria bears spores as described and matches the type in other features. Identified by the vaguely stratose pores, soft white context, irregular skeletal hyphae with almost capillary lumena, and small allantoid spores. Pores of old layers are stuffed, and sometimes plants are rigid with hyphae cemented with mucilage as in those of P. rata. In the hymenium of the type collection are numbers of fusiform paraphysate hyphae with delicate aeuminate apices; but these are wanting in the Victorian specimen. Bases of plants, which are loosely attached, are fuscous or almost black, a few of the basal hyphae possessing discoloured walls.

TYPE LOCALITY: Cascades, Hobart, Tasmania.