European Fungus Flora: Agaricaceae Part 11

var. _adstringens_, Pers. P. exp. pitch black and rather s.h.i.+ning when dry; g. tinged pink; s. naked.

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

var. _porphyroleuc.u.m_, 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 hollow, white with dusky fibrils.

=grammopodium=, Bull. P. 7-12 cm. camp. conv. then depr. umb. glabrous, ruddy then pallid; g. arcuato-adnate, crowded; s. 7-10 cm. stuffed, coa.r.s.ely striate, glabrous, pallid; sp. 7-8 4.

[=strictipes=, Karst. P. soft, gibbous, plane or depr. white or yellowish-white, centre often tinged; g. closely crowded, s.h.i.+ning white, entire; s. solid, equal, cylindrical, base usually thickened, straight, white, glabrous; sp. 6-9 4-5.

=brevipes=, Bull. P. 3-6 cm. brown then pale, glabrous, convex then plane; g. crowded, tinged fuscous then pale; s. 2-2.5 cm. solid, rigid, brown outside and inside; sp. 7 4.

=humile=, Pers. P. 5-8 cm. umb. then convex or depressed, even, glabrous; g. crowded, ventricose; s. 3-5, greyish white, villosely pulverulent, stuffed; sp. 7-8 5.

Differs from _T. brevipes_ in pale stem and tufted habit.

=exsicc.u.m=, Fr. P. 3-5 cm. exp. then umb. greyish brown then h.o.a.ry; g.

crowded, narrow, pure white; s. 2-3 cm. solid, glabrous, rather s.h.i.+ning; sp. 6-7 4.

=subpulverulentum=, Pers. P. 2-3 cm. greyish white, pulverulent, convex then depr. even, extreme edge persistently incurved; g. crowded, narrow, white; s. 3-4 cm. solid, whitish, slightly striate; sp. 5 3.

[=persicinum=, Fr. P. obtuse, even, glabrous, flesh-colour then pale; s.

cartilaginous, glabrous; g. arcuate, white.

[=Juranum=, Q. Obtuse, rufous then pale, white-floccose, margin crenulate, mealy; g. white, crowded; s. solid, white, apex mealy.

** _Gills violet, grey or smoky._

[=urb.u.m=, Fr. P. campan.-exp. brownish black with bluish tinge, sub.u.mb., margin straight; g. densely crowded, like flesh, bluish white; s.

incurved, fibrillose, bulbous.

=sordidum=, Fr. P. 2.5-7 cm. plano-depr. sub.u.mb. glabrous, brownish lilac then dusky; g. rounded, dingy violet then dusky; s. 4-5 cm.

coloured like p. fibrillosely striate, slightly curved as a rule; sp.

7-8 3-4, minutely rugulose.

Differs from _T. nudum_ in being smaller, tougher, and hygrophanous.

var. _Feuilleauboisii_, Lucand and Quel. The broadly gibbous p. and s.

dark umber; g. deep violet.

=paedidum=, Fr. P. 2-3 cm. soon depr. round conical umbo, smoky grey, somewhat streaked; g. crowded, adnexed, narrow, white then greyish; s.

2-3 cm. dingy grey, slightly striate base thickened; sp. 10-11 5-6.

Differs from _T. sordidum_ in having no trace of violet colour; _T.

lixivium_ differs in the free truncate gills.

=lixivium=, Fr. P. 5-8 cm. greyish brown, soon plane and umb. margin expanded, membranaceous, striate; g. truncato-free, grey; s. 5-6 cm.

grey, whitish floccose, often flexuous; sp. 7 4-5.

[=rasile=, Fr. Soft. P. campan.-exp. umb. fibroso-virgate, undulate, fuliginous; g. connected by veins, greyish-umber, edge white floccose; s. equal, fibrillose.

[=favillarum=, Fr. P. exp. depr. round umbo, even, glabrous, moist, edge spreading, even, whitish when dry; g. closely crowded, greyish.

=putidum=, Fr. Smell strong, rancid. P. 2-3 cm. umb. even, soft, olive grey, h.o.a.ry when dry; g. adnexed, crowded, grey; s. 2-3 cm. greyish, pruinose; sp. 8-10 3-5.

_Coll. rancida_ differs in glabrous, rooting stem.

[=hospitans=, Fr. s.h.i.+ning white, campan. obtuse, even, edge straight, adpressed to stem at first; g. free, very ventricose; s. solid, fibrous, glabrous, apex pruinose.

Resembling a _Mycena_ but s. solid and fibrous.

RUSSULA, Fr.

I. Taste mild.

* _Gills ochraceous_ (not clear yellow).

=alutacea=, Fr. P. 4-10 cm. viscid, exp. depr. red, dark purple, disc becoming pale, at length striate and tuberculose at margin, flesh white; g. broad, rather distant, ochre, naked; s. 4-5 cm. white or tinged red; sp. 7-9.

Differs from _R. integra_ in gills not being powdery.

=integra=, Fr. P. 8-12 cm. viscid, exp. depr. red or greenish, margin at length sulcate and tuberculose, flesh white; g. broad, yellow, powdered with the ochre spores; s. 4-5 cm. even, ventricose, white; sp. 9-10.

var. _alba_, Cke. Whole fungus except gills creamy white.

=xerampelina=, Fr. P. 7-10 cm. compact, exp. then depr., dry, rosy purple sometimes tinged olive, disc paler, cracked into granules, flesh tinged yellow; g. forked, white then ochre; s. 4-7 cm. clavate, white, more or less tinged red; sp. 8-10 6-7.

Differs from _R. integra_ by narrow gills not powdered with the spores.

=nauseosa=, Fr. Smell strong. P. 3-4 cm. viscid, plane then depr., purple or lilac, disc darker, coa.r.s.ely striate; g. rather distant, ochre; s. 2-3 cm. slightly striate, white; sp. 8-9.

_R. nitida_ differs in the yellow, s.h.i.+ning gills.

var. _flavida_, Cke. P. primrose yellow.

=vitellina=, Fr. Strong scented. P. 2-3 cm. soon plane, yellow, edge tuberculose, striate; g. saffron ochre; s. 2-3 cm. slender, white; sp.

7-8.

Differs from _R. lutea_ in strong smell and tuberculose margin.

var. _major_, Cke. Similar to type, but larger.

=lilacea=, Q. P. 4-7 cm. exp. depr., viscid, violet becoming pallid; g.

white, broad; s. 4-6 cm. fragile, white or base tinted rose; sp. 7-8.