Fuligineus means sooty or smoky.
The pileus is one to four inches broad, convex or nearly plane, glabrous, very viscid or glutinous, grayish-brown or fuliginous, the disk often darker or almost black.
The gills are subdistant, adnate or decurrent, white.
The stem is two to four inches long, solid, viscid or glutinous, white or whitish. The spores are elliptic, .0003 to .00035 of an inch long, .0002 broad. Peck, No. 4, Vol. 3.
This species is found frequently associated with H. flavodiscus, which it resembles very closely, save in color. When moist, the cap and stems are covered with a thick coating of gluten, and when the caps are dry this gives them a varnished appearance. I do not find them abundant here. The plants in Figure 169 were found by Mrs. Blackford near West Gloucester, Mass. They are found October and November.
Hygrophorus caprinus. Scop.
The Goat Hygrophorus. Edible.
Caprinus means belonging to a goat; it is so called from the fibrils resembling goat's hair.
The pileus is two to three inches broad, fleshy, fragile, conical, then flattened and umbonate, rather wavy, sooty, fibrillose.
The gills are very broad, quite distant, deeply decurrent, white, then glaucous.