13 November 2023 Milford Common, Surrey. Photograph copyright Leif Goodwin. Common Name Sulphur Tricholoma, Sulphur Knight Cap Cap Convex, expanding with age, pale to sulphur yellow, often with reddish tinges, to about 8 cm across Gills Emarginate, broad, sulphur yellow Stem Equal, fibrous, sulphur yellow, often with reddish tints Flesh Thin, sulphur yellow Smell Strong, coal tar or gas Taste Indistinct Season Late summer to autumn Distribution Common Habitat In deciduous and mixed woods, usually with oak or beech Spore Print White Microscopic Features Spores ellipsoidal, smooth (9-12) x (5-6.5) µm2 Edibility Inedible Notes This species is easily recognised by the strong smell. It is believed to form a species complex. Some authorities consider purple capped specimens to be a separate species, T. bufonium, however DNA studies suggest that it is a colour variant of T. sulphureum. |