New Zealand: Queenstown, Otago, G. H. Cunningham, 542, type, comm. by J. R. Weir (in Mo. Bot. Gard. Herb., 59315).

Fructifications resupinate, effused, adnate, thick, fleshy, white, somewhat colliculose, pulverulent, contracting in drying and forming a few large fissures at 2-3 mm. apart, the margin somewhat tomentose; in structure 600-700 µ thick, not colored, composed of densely interwoven and ascending, even-walled, hyaline hyphae 3-4 µ in diameter, occasionally nodose-septate, not encrusted; no probasidia seen; spore-bearing organs straight, 3-septate, 75 x 6 µ, confined to the outer 150 µ of the hymenium, only rarely reaching the surface and protruding; spores simple hyaline, even, 10-12-15 x 7-9 µ, borne singly on the outer 3 cells of the spore-bearing organs so far as observed; surface of the hymenium composed of slender, hyaline, matted and coiled paraphyses or hyphal branches 2 µ in diameter.
Fructifications 1-3 cm. long, 1-1½ cm. wide.
On bark of dead, fallen branches of Nothofagus. New Zealand. December.

S. album somewhat resembles Corticium portentosum and is exceptional, if there is no error in the collector's data, by its occurrence on dead, fallen branches. The hymenial surface of coiled paraphyses, absence of probasidia, and hyphae extending from all parts of the substratum into the fructification without consolidation into supporting pillars are additional characters for recognition of the species.