Yellow Fieldcap

Cap: 1.5-5 cm; egg-shaped or nearly round when young, expanding to broadly bell-shaped or broadly convex, and eventually flat with a depressed central bump; fragile; slimy when fresh; yellow or greenish yellow (sometimes brownish or grayish), often fading to grayish or pale tan but (usually) retaining a yellowish center; smooth; usually strongly lined by maturity, often nearly all the way to the center. Specimens developing a pocketed or veined cap surface as the slime dries out are not infrequent. Young specimens sometimes display a felty, whitish cap margin, but this appears to be the result of contact with the stem (which also features the feltiness) in the button stage, rather than remnants of a true partial veil.

Gills: Free from the stem or narrowly attached to it; close; fragile and soft; whitish or pale yellowish, becoming rusty cinnamon; often gelatinizing somewhat in wet weather.

Stem: 3-12 cm long; up to nearly 1 cm thick; equal or tapering to the apex; hollow; fragile; finely scaly, powdery, or finely hairy--or more or less smooth; white with a yellowish apex and/or base, or yellowish overall.

Flesh: Insubstantial; yellowish.