UNKNOWN HOSTS. South Australia, Tanunda (herb. Kew). New South Wales, Sydney.

Hymenophore biennial, sometimes perennial, coriaceous, commonly resupinate, forming orbicular or linear areas 5-8 x 3-5 cm, or pileate when effused-reflexed with narrow upturned margins, radius seldom exceeding 5 mm; pileus surface chestnut or umber, finely tomentose, radiately striate in old specimens; margin acute, crenate, concolorous or lighter; hymenial surface grey with lighter margins, becoming chestnut where bruised, irregularly rugulose, drying dingy brown, finally deeply irregularly creviced; margin lighter in colour, fibrillose. Context wood colour, 0.5-1 mm thick, composed of one or several zones in the hymenial layer and a dense layer of parallel hyphae radiately arranged, bordered by a yellow cortex of cemented intertwined hyphae bearing abhymenial hairs; generative hyphae 4-5 µm diameter, walls 1 µm thick, without clamp connections. Conducting hyphae arising in the upper part of the context, penetrating the hymenial layer where slightly inflated to 8 µm, contents when fresh yellow with numerous oil globules. Hymenial layer of one or several zones each 50-120 µm deep, upper composed of a palisade of basidia; paraphyses, and conducting hyphae. Basidia clavate, 16-24 x 5-6 µm bearing 4 spores; sterigmata erect, slender, to 4 µm long. Paraphyses subclavate or as often cylindrical, 16-24 x 3-4 µm, many with acute apices. Spores allantoid, 7-10 x 3-4 µm walls smooth, hyaline, 0.1 µm thick.

DISTRIBUTION: Europe, Great Britain, North America, Australia.

HABITAT: Commonly resupinate upon bark of dead branches.

Although close to S. sanguinolentum , typical plants may be separated by the thick, layered hymenial region, commonly resupinate fructifications with rugulose and cinereous hymenial surface only tardily and irregularly creviced. Crystals are embedded in the tissues at the base of the subhymenium of each layer and may be abundant or scanty but are always present.

TYPE LOCALITY: Europe.