Schumacheri, Fr. P. 6-7 cm. exp. obtuse, livid grey, even, moist, edge beyond gills incurved; g. narrow, crowded, pure white; s. 6-8 cm. white, solid, fibrillosely-striate; sp. ——.

[amicus, Fr. P. fuscous; g. distant, white; s. bulbous, solid, white.

patulum, Fr. P. 5-8 cm. plane, obtuse, wavy, even, glabrous, pale grey or pallid; g. sides veined, pallid; s. elastic, equal, glabrous, 5-8 cm.; sp. 7-8 × 4.

circumtectum, Cke. and Mass. P. 5-8 cm. dry, obt. or subumb. wavy, margin incurved, downy, greenish olive then tan; g. white; s. 3-4 cm. whitish, striate, base pointed; sp. subgl. 4-5.

[maluvium, Fr. P. campan.-convex, obtuse, glabrous, greenish; g. rounded, crowded, pallid; s. solid, firm, elastic.

[conglobatum, Vit. Densely clustered. P. unequal, even, edge thin, inflexed, somewhat pruinose, blackish fuscous; g. free; s. stems solid, ventricose, subtomentose, springing densely from a common tuber.

arcuatum, Bull. P. 5-8 cm. brownish white then tan, exp. margin incurved, glabrous, flesh-coloured; g. arcuate, crowded, white; s. 4-6 cm. solid, fibrilloso-squamulose, pale brown, base darker, bulbous; sp. ——.

Differs from T. panaeolum in having white gills, and from T. melaleucum in having coloured flesh.

var. cognatum, Bull. Larger. Gilvous outside and inside or dingy tan; p. obtuse, discoid; g. tan.

oreinum, Fr. P. 2-3 cm. soon plane, obtuse, glabrous, fuscous, even; g. rounded, free, white; s. solid, short, 2-3 cm. whitish, apex white squamulose; sp. ——.

Separated from T. humile by the gills projecting beyond the margin of pileus.

album, Schaeff. Entirely white, taste acrid. P. 6-9 cm. convex then depr. even, glabrous, dry, disc sometimes tinged yellow; g. rather crowded; s. 6-8 cm. narrowed upwards, solid, elastic; sp. 5-6 × 3.

var. caesariatum, Fr. P. white or yellowish, exp. fibrillosely silky, then glabrous; s. slender, fragile, apex rather mealy; g. nearly free.

[lentum, Post. Entirely white not becoming spotted. P. convex, unpolished and at first rather velvety, disc tinged pallid when old; g. sinuate or subdecurr.; s. base narrowed, apex usually longitudinally costate; sp. 7.5-10 × 4.5-7.

[raphanicum, Karst. Smell very strong, like radishes. P. convex, often gibbous, white, disc tinged tan; g. white; s. rooting, flocculose above; sp. glob. 3-4.

leucocephalum, Fr. Pure white, smell mealy. P. 3-4 cm. plane, even, moist, glabrous after silky veil has gone; g. crowded; s. 5-6 cm. hollow, smooth, cartilaginous, tough, rooting; sp. 9-10 × 7-8.

T. album differs in having no smell, and T. inamoenum in strong disagreeable smell and very broad gills.

acerbum, Bull. P. 7-10 cm. expanded, margin at first involute, sulcate and rugulose, viscid, whitish then tinged rufous; g. narrow rufescent; s. 5-8 cm. pale, apex squamulose; sp. subg. 5-6.

militare, Lasch. Smell and taste unpleasant. P. 8-15 cm. convex, gibbous, margin even, viscid, cinnamon; g. white, torn, then spotted; s. 7-11 cm. solid, squamulose, pallid, base subbulbous; sp. ——.

Differs from T. civile in strong smell and spotted gills.

civile, Fr. P. 6-8 cm. soft, soon exp. glabrous, moist, pale yellow brown, cuticle separable; g. crowded, white then yellowish; s. 5-8 cm. solid, soft, fragile, fibrillosely squamulose, whitish; sp. ——.

duracinum, Cke. P. 5-8 cm. convex, gibbous, even, dry, shining, grey with olive tinge; g. arcuate, grey; s. 4-6 cm. reticulately squamulose above, striate below, greyish white; sp. ——.

[irinum, Fr. P. spongy-compact, convex then plane, moist, obsoletely innately virgate, flesh-colour then pale, edge even, pruinose; crowded, narrow, quite entire, greyish then lurid; s. solid, subbulbous, reticulately fibrillose.

personatum, Fr. P. 6-10 cm. regular, obtuse, even, glabrous, margin invol. and downy, tan or with a lilac tinge; g. rounded-free, crowded, broad, violet then dingy; s. 5-7 cm. solid, stout, dingy purple, villose; sp. 8-10 × 5-6.

Flesh of stem white. In T. nudum tinted violet.

saevum, Gillet. P. 6-9 cm. convex then plane, buff, margin naked, flesh thick; g. crowded, narrow, pallid; s. 2-3 cm. long, 2 cm. or more thick, purple, slightly squamulose; sp. 7 × 5.

Differs from T. personatum in the short, stout, squamulose stem, and absence of purple tint on gills.

[glaucocanum, Bres. P. rather soft, convex, exp. glabrous, edge involute subflocculosely pruinose, glaucous-grey; g. closely crowded, greyish violet, easily separating; s. solid, fibrillosely striate, apex subsquamulose, base bulbous, colour of p.; sp. 6 × 3.

nudum, Bull. Whole fungus violet at first. P. 5-8 cm. soon exp. often wavy, flesh thin; g. narrow, becoming rufescent; s. 5-8 cm. equal, elastic, rather mealy; sp. 7 × 3.5.

Flesh of stem tinted violet. In T. personatum white.

[violaceonitens, Bagl. P. convex, umb. dusky violet, shining, edge wavy, rugulosely sulcate; g. crowded, dingy white; s. solid, stout, base narrowed, colour of p.

cinerascens, Bull. P. 5-8 cm. convex, even, glabrous, white then greyish; g. dingy, easily separating from flesh; s. 4-6 cm. solid, equal, glabrous; sp. ——.

panaeolum, Fr. P. 6-8 cm. convex then almost plane, dusky grey with a grey bloom, often spotted; g. grey with rufous tinge; s. 3-5 cm. solid, fibrous-striate, greyish; sp. subgl. 5-6.

var. calceolum, Sterb. P. spongy, deformed, thin, soft, exp. edge incurved, sooty-grey or reddish-grey; g. smoky; s. excentric, fusiform, very short.

cnista, Fr. P. 5-8 cm. exp. moist, glabrous, pale tan or whitish, margin incurved, naked, even; g. white, veined, reddish when bruised; s. 3-5 cm. solid, glabrous, white; sp. 9-10 × 4.

Differs from T. panaeolum in p. not becoming grey.

fallax, Peck. P. 2-3 cm. soon plane, yellow, disc darker, even; g. becoming yellowish; s. 2.5 cm. yellow, hollow; sp. 4-5 × 3.

melaleucum, Pers. P. 3-7 cm. convex then plane, umb. blackish then paler, glabrous; g. emarginate adnexed, white; s. 5-8 cm. equal, elastic, whitish with dark fibrils; sp. 10 × 4-5.

Coll. stridula much resembles this sp. but has a brownish stem. T. arcuatum has flesh tinged brown. T. oreinum has apex of stem squamulose.

var. adstringens, Pers. P. exp. pitch black and rather shining when dry; g. tinged pink; s. naked.

var. polioleucum, Fr. P. obtusely umb. livid then grey; s. apex white-pruinose.

var. porphyroleucum, Bull. P. fleshy, umbo disappearing, sooty or fuscous-rufescent; s. solid, subfibrillose; g. white.

[microcephalum, Karst. P. 2-3 cm. convexo-plane, livid-sooty then pale; g. much crowded, soft, white; s. tall, 9-12 cm. splitting easily into fibres, pallid, glabrous; sp. subg. 5-6 × 5.

[turritum, Fr. P. conico-exp. umb. moist, obscure purple, somewhat spotted; g. soon free, white; s. stuffed then