Hygrocybe singeri

Appearance

Pileus
Cap 2.0-5.0 cm broad, narrowly conic, broadly conic to campanulate in age; margin incurved, then decurved, striate up to 1/4 the distance to the disc; surface viscid when moist, glabrous, occasionally appressed-fibrillose when dry; color red-orange to orange at the disc, yellow at the margin, in age greyish-yellow overall, or developing blackish areas, sometimes entirely black; context thin, watery, dull yellow-orange; odor and taste mild.

Lamellae
Gills notched, narrowly attached, often appearing free, close when young, subdistant in age, relatively broad, up to 1.0 cm wide, cream-yellow, eventually dull yellowish-grey, blackening slowly when injured or with age, greyish-black in old specimens; lamellulae up to four-seried.

Stipe
Stipe 4.0-14.0 cm long, 0.5-1.0 cm thick, straight, equal, cartilaginous, hollow at maturity; surface viscid, appressed-twisted-striate, lemon-yellow or yellow, tinged orange, whitish at the base; blackening erratically with age and weathering; partial veil absent.

Spores
Spores 9.5-11.5 x 5.0-6.5 µm, bean-shaped in side-view, oblong-ellipsoid in face-view, smooth, thin-walled, hilar appendage inconspicuous; spore print white.

Distribution

South America, Central America, and Mexico--and from northern California and the Pacific Northwest, and from Michigan and the upper Great Lakes.

Habitat

Scattered to gregarious in conifer woods