Tricholoma virgatum (Fr. ex Fr.) Kummer. Tricolome verget?, Brennender Erdritterling, Cs?p?s pereszke, Tricoloma vergato, Scherpe ridderzwam, Ashen Knight. Cap 3?7cm across, convex with a low broad umbo, brownish-black or greyish initially with violaceous tints, streaked with very fine black fibrils. Stem 50?90 x 10?18mm, white and smooth, often flushed grey. Flesh white to greyish. Taste bitter and peppery, smell musty. Gills greyish tinged flesh-colour, often browning at the edges. Spore print white. Spores 6.5?8 x 5?6um. Habitat deciduous and coniferous woods. Season autumn. Uncommon. Not edible. Distribution, America and Europe.