Polyporus alveolaris (DC ex Fr.) Bond. & Singer syn. Favolus alueolaris (DC ex Fr.) Quél. Fruit body annual; often with a short lateral stem. Cap 1-9cm across, semicircular to ovoid; pallid reddish yellow; scaly at first. Pores rather large (0.5-3mm across), hexagonal; white or dull creamy; decurrent down the stem. Tubes up to 5mm deep; whitish tan. Stem lateral, short or absent, about l0mm long; colored like the pores. Flesh white. Spores cylindrical, smooth, 9-11 x 3-3.5µ. Deposit white. Habitat on dead wood of deciduous trees. Found in Europe and throughout most of North America. Season May-August, sometimes later. Edible but tough.