tomentum

The leaf has a yellow tomentum below; and the fruit forms a favourite food of monkeys and of various birds, but is not touched by man.

From The Highlands of Ethiopia by William Cornwallis Harris

P. convexo-plane, broadly and obtusely umb. pallid grey; with thin hoary tomentum; g. crowded, whitish then dingy, broadest behind; s. equal, often curved, pallid, base strigose; sp.

From European Fungus Flora: Agaricaceae by George Massee

The cap is thick, hemispherical or convex, dry, covered with downy scales or bundles of red hairs, yellowish beneath the tomentum, often cracked in areas.

From The Mushroom, Edible and Otherwise Its Habitat and its Time of Growth by Miron Elisha Hard

The surface of the pileus seems to be covered with a very fine velvety tomentum which glistens as the cap is turned in the light.

From Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. by George Francis Atkinson

The stem is firm, one to two inches long, unequal, rusty-brown, often covered with a dense tomentum.

From The Mushroom, Edible and Otherwise Its Habitat and its Time of Growth by Miron Elisha Hard