Hirschioporus abietinus (Dicks. ex Fr.) Donk syn. Polystictus abietinus (Dicks. ex Fr.) Fr. Tannenporling. Bracket 1–3cm across, 0.5–2cm wide, 0.1–0.2cm thick, in overlapping rows or shelves; upper surface concentrically grooved, greyish, often with a greenish tint due to the growth of algae amongst the layer of woolly hairs covering the surface, margin pinkish and undulate. Flesh pale brownish or purplish. Tubes 0.3–0.7mm long, lilac when fresh drying reddish-brown. Pores 3–4 per mm, circular or angular becoming irregularly toothed, bright violet especially towards the margin of the cap but paling and brownish with age. Cystidia abundant, fusiform with slightly thickened walls and an encrusted apex, 12–35 x 5–7um. Spores hyaline, oblong-ellipsoid, 6.5–8 x 3–4um. Hyphal structure dimitic; generative hyphae with clamp-connections. Habitat on dead fallen coniferous trunks and stumps. Season all year. Frequent. Not edible. Found In Europe and north America.