白柄茶薪菇

子实体小或中等大。菌盖直径2-9.5cm，半球形至扁平，中部稍突起，幼时深褐色至茶褐色，渐变淡褐色、淡灰褐色至淡土黄色，边缘色淡，湿润时稍粘，光滑或往往中部多皱纹。菌肉污白色，中部较厚边缘薄。菌褶污黄褐色至褐色，密，直生至近弯生，不等长。菌柄长3-9cm，粗0.4-1cm，污白色，向下渐呈淡褐色，具纤毛状小鳞片，内实至松软，多弯曲和稍扭转。菌环生柄上部，白色，膜质，上面具细条纹，往往布满孢子而呈褐色。孢子印褐色。孢子淡黄褐色，光滑，椭圆形或宽椭圆形至卵圆形，8-10.4μm×5.2-6.4μm。褶缘囊体近纺锤状或棒状, 顶部钝, 与褶侧囊体形态相似。春至秋季生于茶树、杨、柳树等树木或树桩的腐朽部分，丛生或单生。

Fruiting bodies small to moderately sized. Pileus 2–9.5 cm in diameter, hemispherical to applanate, slightly umbonate at the center; dark brown to tawny when young, gradually turning light brown, pale grayish brown to pale buff, with paler margins; slightly viscid when moist, smooth to frequently wrinkled at the center. Context whitish to pale grayish white, thicker at the center and thinner at the margin. Lamellae dense, pale yellowish brown to brown, adnate to subsinuate, unequal in length. Stipe 3–9 cm long, 0.4–1 cm thick, whitish to pale grayish white, becoming pale brown downward, with fibrillose squamules, solid to stuffed, often curved and slightly twisted. Annulus superior on the stipe, membranous, with fine striations on the upper surface, often covered with spores and thus brownish. Spore print brown. Spores pale yellowish brown, smooth, ellipsoid to broadly ellipsoid or ovoid, 8–10.4 × 5.2–6.4 μm. Cheilocystidia subfusoid to clavate, with obtuse apices, similar in morphology to pleurocystidia. Growing on decaying wood of trees including tea plants, poplars, willows, or on stumps, from spring to autumn, caespitose or solitary.