Stor kragesopp, Stropharia hornemannii, Stor kragskivling, Conifer Roundhead mushroom, or luxuriant ringstalk and lacerated stropharia. A species of agaric fungus in the family Strophariaceae. It irows as a saprophyte on rotting conifer wood. Common names for the mushroom include Conifer Roundhead mushroom, luxuriant ringsta and lacerated stropharia. Stropharia hornemannii is a large, charismatic Stropharia with a slimy, reddish brown to purple-brown or brown cap and a thick, scaly stem. Its range is apparently limited to the conifer forests of northern and montane areas. It tends to grow in clusters, and is often found fruiting from well decayed wood.
Saprobic; growing alone, scattered, or in clusters on duff and woody debris in conifer forests; often found fruiting from well decayed wood; summer and fall.
Cap: 4-16 cm; convex, becoming broadly convex or flat; slimy; reddish brown to purple-brown, brown, or olive brown--often fading to tan or pale yellowish brown; smooth; occasionally with white partial veil remnants near the margin. Gills attached to the stem or beginning to pull away from it; close; pale gray at first, later purplish gray to purple-black. Stem: 5-15 cm long; up to 2.5 cm thick; equal; dry; with a persistent, skirtlike, white ring that becomes dusted with purple-black spore dust; conspicuously shaggy-scaly, especially when young; base often with mycelial threads.
Flesh: White. Odor and Taste: Somewhat foul. Spore Print: Dark purple-brown to blackish. Previously poisonous, now edible.Tidligere giftig, nå spiselig.