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Volvariella bombycina
It is found growing on hardwood logs and living hardwoods. It has a hairy, white cap that is not lined on the margin; in age the cap may become slightly yellowish in the center. The mature gills and the spore print are pink, and there is a whitish to brownish volva at the base of the stem. Cap: 5-20 cm; oval becoming bell-shaped to broadly convex or nearly flat; whitish or tinged yellowish over the center in age; the margin not lined; dry; covered with silky hairs. Gills: Free from the stem; whitish becoming pink; crowded. Stem: 6-20 cm long; 1-2 cm thick; more or less equal, but usually tapering somewhat to apex; often curved in order to set the cap "straight" due growth on wood; dry; white; smooth; without a ring; the base encased in a thick, white to yellowish or brownish, sack-like volva.
Saprobic on the wood of hardwoods (documented on maples, magnolia, mango, beech, and American elm), either on dead trees or from the wounds of living trees; growing alone or somewhat gregariously; late spring, summer and fall; widely distributed in North America but more common east of the Mississippi. This one was photographed on the wound of a living oak tree in Edgefield County, SC.
It has a white spore print.
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