=urticaecola=, B. and Br. P. 4-5 mm. campan. flocculent, edge becoming striate, white; g. chocolate; s. 1-2 cm. flocculent, white; sp. 7 x 4. PSILOCYBE, Fr. I. TENACES. _Veil accidental, rarely conspicuous. Stem callous, flexile, often coloured. Pileus pelliculose, often viscid in damp weather, becoming somewhat pale, clear coloured._ * _Gills ventricose, not decurrent._ =sarcocephala=, Fr. P. 4-9 cm. compact, exp. mealy then glabrous, pallid rusty; g. adnate, very broad, grey then purplish bistre; s. 7-12 cm. whitish, apex mealy; sp. 7 x 3.5. [=pertinax=, Fr. P. convexo-plane, obtuse, reticulately rugose, dusky-brown, disc even; g. adnate, crowded, rusty-brown; s. hollow, fibrillosely striate, pallid. =nemophila=, Alex. P. exp. brick-red, even; g. deeply decur. very narrow, edge crisped-dentate; s. solid, pale, fusiformly narrowed. =helvola=, Schaeff. P. 2-3 cm. conical then convex, yellow-brown, disc darkest; g. broadly adnate, broad, purple-umber, edge whitish; s. 5-6 cm. flexuous, pale, hollow; sp. obliquely elliptical, warted, 9-10 x 5-6. =atrobrunnea=, Lasch. P. campan.-convex, umb. even, brownish; g. adnexed then seceding, rather distant, brownish; s. stuffed, long, fibrillose, apex white-mealy; sp. 9-12 x 5-6. =ericaea=, Pers. P. 2-4 cm. exp. viscid when moist, tawny or bay then yellowish and shining; g. adnate, broad, pruinose, at length black, edge white; s. 6-9 cm. tough, pallid; sp. 9-10 x 5. =subericaea=, Fr. P. 3-5 cm. convex, obtuse, becoming plane, even, smooth, tawny then pale; g. sinuate, adnexed, broad; s. 3-4 cm. equal, smooth, yellowish, hollow; sp. 10 x 6. Differs from _P. ericaea_ in short s. and attachment of broad g. [=dichroa=, Karst. P. campan. subumb. edge slightly striate, bay then tan; g. adfixed, broad, brownish-purple, edge whitish; s. pallid, then fuscescent, silky. var. _minor_, Karst. Smaller. P. striate to middle; g. umber. [=lipophila=, Oud. P. convex, exp. obtuse, glabrous, viscid when moist, pale rusty; g. adnexed then decur. broad; s. whitish, apex white, base with white down; sp. 11-12 x 7. [=mutabilis=, Karst. P. tough, convex, obtuse, watery umber when moist, tawny when dry, glabrous; g. adnate, crowded, broad; s. hollow, rigid, equal, whitish-silky, tinged rusty especially downwards; sp. 7-10 x 3-4. =uda=, Pers. P. 1.5-2.5 cm. exp. dry, rugulose, tawny then yellowish; g. adfixed, purplish; s. 6-10 cm. pale, thin, tough, fibrillose base rusty; sp. 10 x 5. (16-20 x 7-9 Karst.) var. _polytrichi_, Fr. P. campan.-convex then plano-depr. even, glabrous, dry, pale yellow then whitish, edge pale; g. becoming decur.; s. elongated, wavy, glabrous, pale tawny. var. _elongatus_, Pers. P. campan.-convex, striate when moist, livid- or greenish-yellow, even and yellowish when dry. [=corneipes=, Fr. P. campan.-convex, glabrous, bay, edge striate; g. adnate, very broad behind; s. horny, rigid, shining, blackish bay.