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Page number:620 
Remarks (public):The rather soft, separable basidiocarps and the conspicuous white rhizomorphs are good field characters for S. alutacea. 
Description type:Non-original description 
Description:Skeletocutis alutacea (J. Lowe) Jean Keller, Persoonia 10:353, 1979 - Poria alutacea J. Lowe, Mycologia 38:202, 1946. Basidiocarps annual, resupinate, effused up to 20 cm, soft, easily separated from substratum; sterile margin white to cream-coloured, cottony to fimbriate or with conspicuous, white to cream-coloured rhizomorphs up to 1 mm in diam; pore surface white to pale ochraceous buff, glancing, the pores circular to angular, 4-8 per mm, with thin, entire dissepiments that appear finely granulose; subiculum white to cream-coloured, soft-fibrous, less than 1 mm thick; tube layer cream-coloured, drying brittle and shattering when cut, up to 1 mm thick.
Hyphal system dimitic; subicular skeletal hyphae thick-walled, hyaline, nonseptate, rarely branched, 2-4 µm in diam; subicular generative hyphae thin-walled, hyaline, with clamps, rarely branched, 2.5-4.5 µm in diam; tramal hyphae similar, encrusted in dissepiment edges.
Cystidia none; fusoid cystidioles present, 11-17 x 4-5 mm, with a basal clamp. Basidia clavate, 4-sterigmate, 11-17 x 4.5-6 11m, with a basal clamp.
Basidiospores cylindric, slightly curved, hyaline, smooth, negative in Melzer' s reagent, 3.5-5 x 1-1.5 µm.
Type of rot. White rot of dead conifers and hardwoods.
Cultural characteristics. See David 1982.
Sexuality. Heterothallic and tetrapolar (David 1982).
Substrata. Dead wood of several conifer and hardwood genera including Pinus, Acer, Fagus, and Salix.
Distribution. A rare species in Central and Southern Europe and known north to Denmark, known also from North America and New Zealand.
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