Merulius aureus Fr.
Merulius croceus (Pers.) Duby
Merulius vastator Fr.
Plicatura aurea (Fr.) Parmasto
Serpula aurea (Fr.) P. Karst.
Xylomyzon croceum Pers.
Xylomyzon solare Pers.
Fruit body: 5-15 cm broad, approximately 2 mm thick; a spreading, wrinkled crust on the underside of logs; bright orange to golden brown, paler yellow-gold at margin; surface extensively folded and wrinkled.
Spores: cylindrical, smooth; 3.5-4.5 x 1.0-2.0 µm.
Spore deposit: white to yellowish.
Habitat and habitat: on undersides of dead, bark-less conifer logs. Found in Europe and North America. August-October.
Edibility: Not edible.
Polysaccharides extracted from the mycelial culture of P. aureus and administered intraperitoneally into white mice at a dosage of 300 mg/kg inhibited the growth of Sarcoma 180 and Ehrlich solid cancers by 100% (Ohtsuka et al., 1973).
Ohtsuka S, Ueno S, Yoshikumi C, Hirose F, Ohmura Y, Wada T, Fujii T, Takahashi E.
Polysaccharides having an anticarcinogenic effect and a method of producing them from species of Basidiomycetes.
UK Patent 1331513, 26 September 1973.