Tyromyces stipticus (Pers. ex Fr.) Kotl. & Pouz. syn. Polyporus stipticus Pers. ex Fr. Weisser Nadelholzporling. Bracket 1–8cm across, 1–6.5cm wide, 0.5–3.5cm thick, semicircular or kidney-shaped, single or in small overlapping groups; upper surface uneven, milk-white. Taste bitter and stinging. Tubes 0.3–0.7mm long, white exuding whitish droplets in humid weather, which dry cream. Pores 1–5mm across, circular becoming more elongate, white to cream. Spores white, oblong-ellipsoid, 3.5–4.5 x 1.5–2.5um. Hyphal structure monomitic; generative hyphae with clamp connections. Habitat usually on dead conifers, less frequently on living trees. Season all year. Frequent. Not edible. Distribution, America and Europe.