Every part blackish when bruised or old. [=albus=, Otth. P. conical, obtuse, even, white; g. free, snow-white; s. white, striate, shining. Differs from _Hygr. conicus_ in colour and obtuse p. =calyptraeformis=, B. P. 3-7 cm. acutely conical then splitting and exp. clear rose then paler; g. slightly adnexed, tinged rose; s. 6-9 cm. hollow, white; sp. 7 x 4. Var. _niveus_, Cke. Entirely white. =chlorophanus=, Fr. P. 2-3 cm. fragile, very thin, convex, obtuse, viscid, yellow, sometimes crimson; g. emarginate, adnexed, white tinged yellow; s. viscid when moist, even, everywhere yellow, 4-7 cm.; sp. 8 x 5. Differs from _H. conicus_ in not becoming black. =psittacinus=, Schaeff. P. 1.5-3 cm. campan. then exp. umb. striate, yellow and orange, with green gluten; g. thick, distant, greenish; s. 3-5 cm. glutinous, yellow, apex green; sp. 10 x 5. =spadiceus=, Fr. P. 4-9 cm. thin, conical, acute, fibrilloso-virgate, with olive-bay gluten, blackish and shining when dry; g. citrin; s. 5-7 cm. hollow, dry, tawny-fibrillose; sp. 6-7 x 4. Differs from _H. conicus_ in virgate p. and thicker g. not narrowed behind. [=squalidus=, Lasch. Fragile. P. campan. exp. gibbous, and with the glabrous hollow s. sooty and glutinous, orange after the gluten has gone; g. thick, livid then fuscous, edge orange. =unguinosus=, Fr. P. 4-5 cm. fragile, thin, obtuse, uneven, smooth, with smoky-brown dripping gluten, becoming cracked; g. white; s. 4-5 cm. hollow, with smoky gluten; sp. 10 x 7-8. [=obscuratus=, Karst. P. fragile, convex, obtuse, dry, squamulose, sooty or livid blackish, mouse-colour when dry; g. sinuato-adnate, whitish or glaucous; s. unequal, usually inflated below, wavy, glabrous, pallid, centre often tinged smoky; sp. 7-10 x 3-5. =nitratus=, Pers. Smell strong, nitrous. P. 3-5 cm. deformed, viscid, soon dry and squamulose, brownish-grey; g. broad, distant, white then glaucous; s. 4-7 cm. polished, white or tinged yellow; sp. 8 x 5. There are two forms, a large one in woods, and a smaller one in pastures, structure that of _H. coccineus_, but colours very different. Readily distinguished by the strong nitrous smell. [=Schulzeri=, Bres. P. hemispher. exp. or depr. dry, even, livid cinnamon; g. distant, subdecur. white then greyish; s. dry, colour of p., apex white-scurfy; inodorous; sp. glob. 3-3.5. [=glauconitens=, Fr. Rigid. P. fibrillosely virgate, olive-black or sooty then pale; g. glaucous; s. equal, shining; sp. 6-8 x 6-7. Fries thinks this may be a young state of _H. nitratus_. Smell same but weaker. [=Marzuolus=, Bres. (= _Clitocybe Marzuolus_, Bres.). P. 4.5-7 cm. s. 4-7 cm. base clavate; sp. 6-7 x 4-5. Bresadola considers this sp. is the _Clitocybe_ of Fries. CLITOCYBE, Fr. A. _P. fleshy, not hygr. pale and silky when dry._ * DISCIFORMES. _P. fleshy, convex then plane or subdepressed._ + _P. greyish or brownish._