Part 10 (1/2)

var. _multiforme_, Schaeff. P. irreg., caespitose, smaller than type.

VI. SPONGIOSA. _Pileus compact then spongy, obtuse, even, glabrous, not hygrophanous._

* _Gills not discoloured._

=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.

=circ.u.mtectum=, Cke. and Ma.s.s. P. 5-8 cm. dry, obt. or sub.u.mb. 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 cl.u.s.tered. 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.

melaleuc.u.m_ 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.

=alb.u.m=, 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.

[=raphanic.u.m=, 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. alb.u.m_ differs in having no smell, and _T. inamoenum_ in strong disagreeable smell and very broad gills.

** _Gills discoloured._

=acerb.u.m=, 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.