Sotriske er en mindre vanlig art som vokser i kalkfattige bar- og blandingsskoger i store deler av landet. Flott å se på med stor kontrast mellom de kritthvite skivene og den mørke hatten. Hatt sotbrun til sotsvart, 3-6 cm, først hvelvet, senere utbredt, ofte med en liten pukkel. Skiver snøhvite/fløtehvite, tette og tilvokste, fløtegult sporepulver. Hvitaktig kjøtt som rødner langsomt i snittflater. Hvit melkesaft, som rødner langsomt i kontakt med kjøttet. Dansk: Fløjls-mælkehat. This dark brown, velvety Lactarius grows under conifers and features fairly well-spaced gills, a long stem that is nearly as dark as the cap, and white milk that usually stains the flesh and the gills pinkish. Under the microscope, Lactarius lignyotus has spiny spores that are partially reticulate, and a striking epithelium-like pileipellis.
Elias Fries first described Lactarius lignyotus from Sweden in 1855, and the European concept of the species has remained fairly stable for over 150 years. Ecology: Mycorrhizal with conifers, especially spruces and firs; terrestrial but not infrequently found growing from well rotted wood near the ground; late summer and fall. Cap: 2-10 cm; convex with a small point in the middle, becoming flat or shallowly depressed, with the central point remaining or disappearing; dry; finely velvety; often with a rugged or wrinkled surface; nearly black when young, dark brown to brown in age; the margin sometimes becoming ridged.
Gills: Attached to the stem or beginning to run down it; close or nearly distant; white or whitish, remaining pale until old age, when pinkish to orangish hues often result from drying milk and spore maturation; occasionally with brownish edges; usually staining slowly reddish to pinkish when damaged but sometimes not staining.
Stem: 4-12 cm long; up to 1.5 cm thick; more or less equal; dry; textured and colored like the cap, except for a whitish base; often with small ribs at the apex.
Flesh: White; usually changing slowl