even, glabrous, whitish; g. adnate, pale ochre, then tinged red; s. solid, stout, narrowed from the base, whitish, ring fugacious.

[rhadigosa, Fr. P. depr. moist, whitish with brownish adpressed scales at disc; g. decur., broad, white; s. short, equal, ring reflexed.

mellea, Vahl. P. 5-12 cm. soon expanded, yellowish-brown, squamulose, margin striate; g. slightly decurrent; s. 8-12 cm. floccose up to spreading ring, base honey-colour; sp. 9 × 5-6.

Mycelium forming long black strands. A destructive parasite.

denigrata, Fr. P. 3-5 cm. obtuse, dark brown, rather viscid, spotted with droplike depressions, and with elevated warts, margin even; g. rather decurrent; s. 4-5 cm. solid tinged brown, ring disappearing; sp. ——.

[morio, Fr. P. campan.-exp. irreg. cracked, viscid, greyish brown then rufescent; g. adnate; s. solid, fibrous, ring narrow.

[Viviani, Fr. P. convex, glabrous, dark bay then whitish; g. adnate, pale fawn; s. elongated, white, ring narrow.

[griseofusca, D. C. P. convex, even, glabrous, brownish grey, discoid; g. decur.; s. equal, glabrous, ring persistent.

[pleurotoides, Fr. P. subexcentric, ring toothed; s. whitish with a flesh-coloured tint.

citri, Inz. P. 2-3 cm. soon plane, subumb., even, yellow; g. adnate; s. 5-7 cm., slender, ring spreading; sp. subgl. 5 × 4.

subcava, Schum. P. 3-4 cm. white, umbo brownish, striate to middle; g. decurrent; s. equal, hollow upwards, 4-5 cm., even up to torn ring, punctate above, white; sp. ——.

Differs from A. constricta by longer thinner stem, and striate pileus.

haematites, B. and Br. P. 2-3 cm. obtuse, liver-coloured; g. adnato-decurrent; s. 3-5 cm. coloured like pileus up to ring, whitish above; sp. 8 × 5.

TRICHOLOMA, Fr.

1. A. Pileus viscid, scaly, or villose.
   1. I. Limacina. Pileus viscid when moist, innately fibrillose or squamulose, but not broken up.
      1. * Gills not changing colour, not becoming rufescent.

         equestre, Linn. P. 7-12 cm. exp. obtuse, viscid, squamulose, yellow or tinged green; g. sulphur yellow; s. 4-7 cm. yellow; sp. 7-8 × 5.

         coryphaeum, Fr. P. 8-15 cm. soon exp. viscid, yellowish with darker squamules; g. white, edge yellow; s. solid, obclavate; sp. subglobose, 5-6.

         T. equestre differs in having gills entirely yellow, and T. sejunctum in its pure white gills.

         sejunctum, Sow. P. 7-10 cm. expanded, yellow with brown streaks, viscid; g. pure white; s. 8-12 cm. white, apex squamulose; sp. subgl. 5-6.

         portentosum, Fr. P. 7-12 cm. viscid, sooty often with purple tinge, viscid, streaked with dark lines; g. white, very broad; s. 7-8 cm. whitish, glabrous; sp. subgl. 4-5 × 4.

         fucatum, Fr. P. 5-7 cm. soon plane, viscid, dingy yellow with darker stains; g. white or tinged yellow; s. 5-7 cm. fibro-squamulose, whitish; sp. ——.

         quinquepartitum, Fr. P. 7-10 cm. viscid, even, glabrous, pale yellowish; g. broad, white; s. 7-10 cm. white, striate, glabrous; sp. 5-6 × 3-4.

         Differs from T. portentosum in p. not being virgate, and from T. fucatum in glabrous striate stem.

         resplendens, Fr. White. P. 5-9 cm. expanded, viscid, even, glabrous, shining when dry, margin straight; g. very emarginate; s. 5-7 cm., solid, apex flocculose; sp. 7-8 × 4.

         Differs from T. spermaticum in solid stem.

         spermaticum, Fr. White. P. 5-8 cm. expanded, viscid, wavy, glabrous, shining when dry, margin at first incurved; g. margin eroded; s. 5-9 cm. twisted; sp. ——.

      2. ** Gills becoming discoloured, usually spotted with brownish-red.

         colossus, Fr. P. 12-20 cm. expanded, margin at first incurved, dull red or reddish umber, glabrous then squamulose, flesh very thick, reddish when broken; g. broad, reddish; s. 7-10 cm. stout, apex constricted, solid, reddish; sp. 6 × 4.

         [aurata, Fr. P. exp. obtuse, even, yellow then rufescent; g. yellow; s. solid, fibrillose, yellow.

         nictitans, Fr. P. 3-5 cm. exp. obtuse, even, glabrous, viscid, yellowish; g. yellow; s. 7-8 cm. solid, yellow, apex squamulose; sp. 7-8 × 5.

         Differs from T. flavobrunneum in squamulose apex of stem.

         fulvellum, Fr. P. 2-5 cm. exp. viscid, even, yellowish tan disc darker and wrinkled; g. white then tinged rufescent; s. 4-6 cm. fibrillose, apex naked, white tinged rufous; sp. subgl. 4-5.

         flavobrunneum, Fr. P. 7-14 cm. soon exp. viscid, bay, virgate-squamulose, flesh yellow then tinged rufous; g. pale yellow; s. 7-12 cm. ventricose, hollow, brownish, flesh yellow, viscid at first; sp. 6-7 × 4-5.

         albobrunneum, Fr. P. 6-8 cm. obtuse, viscid, brown, streaked with fibrils, disc papillose; g. broad, whitish; s. 3-5 cm. equal, rufescent, solid, flesh white; sp. 4-6 × 3-5.

         irregulare, Karst. P. convex then exp. very irreg. rather viscid, fibrillosely virgate, pale, tinged tawny rufous; g. white then reddish or spotted; s. equal, curved, white, apex flocculose. Smell strong.

         Differs from T. albobrunneum in paler, irreg. p. and smell.

         [Salero, Barla. Smell strong, mealy. P. exp. obtuse, even, viscid when moist, satiny when dry, chestnut; g. white then reddish; s. cylindrical, white and squamulose at apex, fibrillose and reddish at middle; flesh white, reddish when broken, very bitter.

         ustale, Fr. P. 4-7 cm. exp. umb. then nearly plane, even, glabrous, disc rugulose bay; g. white tinged brown later, decur. tooth; s. 5-8 cm. equal, somewhat rooting, apex naked, whitish; sp. 7-8 × 5.

         pessundatum, Fr. P. 7-9 cm. obtuse, wavy, glabrous, viscid, bay or rufescent, granular or spotted; g. almost free, white then tinged rufous; s. 5-8 cm. white, floccosely squamulose; sp. 5 × 2.5.

         stans, Fr. P. 7-10 cm. exp. viscid, rufescent, even, flesh red under cuticle; g. crowded, spotted reddish; s. 5-8 cm. whitish, squamulose; sp. 5-6 × 4.

         russula, Schaeff. P. 6-8 cm. exp. viscid, rosy red, granulated; g. subdecurrent; s. 3-5 cm. rosy, apex squamulose; sp. 10 × 5.

         frumentaceum, Bull. P. 5-10 cm. exp. viscid, glabrous, pallid, streaked or stained reddish; g. crowded; s. 5-8 cm. solid, fibrillose, white, variegated red; sp. 5 × 3.5.

   2. II. Genuina. Pellicle not viscid, torn into scales, or fibrillose.
      1. * Gills not changing