=microrhiza=, Lasch. P. 2-3 cm. campan. even, dry, atomate, at first yellow-pilose; g. crowded, narrow; s. 4-5 cm. silky, white, rooting; sp.

10-11 6.

=urticaecola=, B. and Br. P. 4-5 mm. campan. flocculent, edge becoming striate, white; g. chocolate; s. 1-2 cm. flocculent, white; sp. 7 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 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 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 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 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 6.

Differs from _P. ericaea_ in short s. and attachment of broad g.

[=dichroa=, Karst. P. campan. sub.u.mb. 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 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 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 5. (16-20 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. h.o.r.n.y, rigid, shining, blackish bay.

=canofaciens=, Cke. P. 2-3 cm. campan. then exp. disc fleshy, bay, with white fibrils; g. adnate, umber; s. 4-7 cm. colour of p.; sp. 10 4, some much larger.

=areolata=, Klotzsch. P. 3-6 cm. exp. brownish ochre, cracked up into patches; g. adnate; s. 4-7 cm. dingy white, fibrillose; sp. 12-13 8.

=virescens=, Ma.s.s. P. 3-5 cm. exp. brown then greenish yellow, cracked into patches; g. adnexed, dingy purple, edge pale; s. 4-5 cm. apex striate, greenish, base white; sp. 9 5.

=agraria=, Fr. P. 2 cm. exp. white, not hygr.; g. adnate, white then brown; s. 4-6 cm. glabrous, white; sp. ----.

=chondroderma=, B. and Br. P. 2-3 cm. campan. bright dark brown, very smooth, sometimes cracked, edge thin, append.; g. adfixed, brown, edge white; s. 4-5 cm. subequal, paler than p., fibrillose, base squamulose; sp. 7 3.5.

=scobicola=, B. and Br. P. 2-3 cm. convex, umbil. white, glabrous; g.

adnexed, broad, reddish-brown; s. 2-3 cm. whitish, fibrillose, hollow; sp. 8 5, pale.

** _Gills plane, very broad behind, subdecur._

=ammophila=, Mont. P. 2-3 cm. exp. umb. yellow-rufous, fibrillose;

=coprophila=, Bull. P. 1.5-2 cm. slightly viscid, hemispher. then exp.

umb. yellowish rufous; g. arcuato-subdecur. broad; s. 3-5 cm. narrowed upwards, white, floccose then almost glabrous; sp. 13-14 8.

Differs from _P. bullacea_ in absence of striae on p.

=bullacea=, Bull. P. 1-2 cm. hemispher. then exp. umb. finely striate to middle, rather viscid, bay or brownish brick-red, then pale, often with a white fringe at the edge, cuticle separable; g. adnate, almost triangular, grey then brownish purple; s. 2-4 cm. slender, apex pruinose, fawn, fibrillose, base rusty; sp. 9-11 4-7.

=physaloides=, Bull. P. 1.5-2 cm. campan. then exp. umb. striate, rather viscid, purple brown or bay then pale; g. subdecur. rather rusty then purplish brown; s. 2-3 cm. fibrillose, base bay; sp. 12 6.

[=ferrugineo-lateritia=, Vogl. P. convex, sub.u.mbil. edge substriate, glabrous, subhygr. rusty brick-red; g. adnato-decur. purple-black; s.

cylindrical, colour of p. base white; sp. 7-9 4.

[=libertata=, Fr. P. obconic, umbo hemispher. prominent, at first h.o.a.rily silky then glabrous, dusky umber then pale; g. deeply decur.; s.

flexile.

=atrorufa=, Schaeff. P. 2-2.5 cm. convex, obtuse, glabrous, edge striate, purple-brown then pale; g. subdecur. broad, brown-violet with a white edge; s. 5-7 cm. pale bay or fawn, pruinose, fibrillose at base; sp. 10-12 6. (6-8 4-5 Karst.)

=nuciseda=, Fr. P. 1.5-2 cm. convex, obsoletely umb. rather silky when dry and yellowish, dusky brown at first; g. adnate, broad; s. 2-3 cm.

brownish with white down, base narrowed; sp. 8 4.

*** _Gills sublinear, ascending._

=tegularis=, Schum. P. campan. glabrous, tan, areolately cracked; g.

attenuato-adnexed; s. stuffed, narrowed upwards from a thickened base, pallid.

=compta=, B. and Br. P. 3-4 cm. conico-campan. then exp. sub.u.mb. edge striate, pale ochre and atomate when dry; g. broad, adnate; s. 4-5 cm.

pale rufous; sp. ----.

[=callosa=, Fr. P. conico-campan. obtuse, even, glabrous, dry, white or yellowish; g. adnate, ascending, ventricose, sooty black; s. tough, equal, glabrous, pallid.

=semilanceata=, Fr. P. 1-2 cm. exp. acutely conical, slightly viscid and striate when moist, pallid, often tinged yellow or green; g. adnexed; s.

4-7 cm. flexuous, pallid; sp. 10-12 6.

var. _caerulescens_, Cke. P. rather obtuse; s. bluish at base.

II. RIGIDI. _Veil absent. Stem rigid. Gills adnexed, very rarely adnate._