Stereum hirsutum (Willd.) Pers. 1800
Common names: Hairy Curtain Crust, Hairy Stereum [En], Stérée hirsute [Fr], Striegeliger Schichtpilz [De]
Halle, BRABANT ● Belgium
Description: 5-3 cm across, but often fused together; fan-shaped, semicircular, or irregular; densely velvety, hairy, or with appressed hairs; with concentric zones of texture and color; colors variable, but generally ranging from yellow to tan, brown, reddish brown, or buff (sometimes developing greenish shades in old age as a result of algae); laterally attached, without a stem.
The undersurface is smooth; yellowish to yellow-brown or grayish brown; sometimes bruising darker yellow.
Biology: Saprobic, growing densely gregariously, often from gaps in the bark, fusing together laterally, often serving as a host to algae.
Habitat: On the dead wood of hardwoods, especially oaks;
Distribution: Europe, North America.
Kuo, M., 2008.. MushroomExpert.Com