Part 10

[=insignis=, Gill. P. conical, convex, then exp. edge more or less wavy and upturned, much depr. round strong umbo, even, glabrous, red, umb. rusty; g. closely crowded, clear white; s. cylindrical, solid, colour of p.

[=papillata=, Gillet. P. convex then exp. with a little persistent brown umbo, glabrous, hygr. slightly striate, clear reddish; g. pallid; s. subequal, wavy, white-pruinose, apex colour of p.

[=radicellata=, Godey. P. convex, umbil. purplish brown, grey-pruinose; g. crowded, soon yellowish grey; s. equal, curved, colour of g. with a white bloom, base white with a number of branched strands.

[=ochracea=, Gill. P. irreg. umb. uniformly ochre, silky or pruinose; g. distant; s. excentric, colour deeper than p.

[=macrophylla=, Karst. P. thin, convex, orbicular, livid-white then paler and shining; g. adnate, very broad, triangular, white; s. wavy, whitish, glabrous, base thickened; sp. ----.

[=lepiphylla=, Gill. P. convex then depr. uniformly pale grey then pallid; g. decur. tinged grey; s. elastic, wavy, grey, with a white bloom, with longitudinal whitish striae.

=metachroa=, Fr. P. 3-5 cm. convexo-plane then depr. brownish grey, then livid, at last pallid; g. pale grey; s. 2-3 cm. grey, apex mealy; sp. ----.

=zygophylla=, Cke. and Mass. P. 4-7 cm. thin, wavy, slightly depr. greyish ochre then pallid, edge plicate; g. deeply decur. grey, veined; s. 4-5 cm. smooth, pallid; sp. 8 x 4.

=pausiaca=, Fr. P. 2-3 cm. soon plane, umber with olive tinge, often silky; g. adnate, olive; s. 4-6 cm. striate, coloured like p., apex powdery; sp. ----.

=ditopa=, Fr. Smell strong, mealy. P. 2-3 cm. plane then depr. brownish grey then pale, often wavy; g. adnate, dusky grey; s. 2.3 cm. hollow; sp. ----.

Differs from _C. metachroa_ in mealy smell.

[=nubila=, Fr. P. exp. umb. livid then tan, glabrous; g. subdecur. rather distant, brownish tan; s. slender, apex pruinose.

[=obola=, Fr. P. convexo-plane, obtuse, glabrous, hygr. livid then whitish; g. adnate, livid; s. equal, thin, striate, naked, livid.

++ _Gills whitish._

=diatreta=, Fr. P. 2-4 cm. plane then depr. edge involute, pubescent, often wavy, flesh colour then pallid tan; g. with an acute decur. tooth, crowded, narrow; s. 3-5 cm. pallid, straight, terete; sp. ----.

=fragrans=, Sow. Smell strong, spicy, 2-3 cm. depr. pallid; g. subdecur. rather crowded; s. 4-5 cm. elastic, glabrous; sp. ----.

_C. suaveolens_ differs in cup-shaped p. and brownish stem.

=angustissima=, Fr. P. 4-5 cm. plano-depr. edge spreading, pallid, shining white when dry; g. subdecur. narrow, closely crowded; s. 4-5 cm. white, naked, flexuous; sp. 5 x 3.

[=isabellina=, Q. P. yellowish white, umb. hygr.; g. thick, often branched, whitish; s. fistulose, wavy, white, base narrowed.

=obsoletus=, Batsch. Smell spicy, but weak. P. 2-3 cm. plano-depr. even, pale pinky tan, pale when dry; g. obtusely adnate, broad; s. 2-3 cm. elastic, soon hollow, whitish; sp. ----.

[=mortuosa=, Fr. P. plano-depr. umber or brown then pale, even; g. adnate, closely crowded, narrow, whitish; s. short, glabrous, compr. whitish.

[=gyrans=, Fr. P. convex-umb. even, glabrous, hygr. edge broadly incurved, whitish; g. crowded, white; s. hollow, glabrous.

****** VERSIFORMES. _Pileus thin, convex then deformed, squamulose or furfuraceous; g. adnate, broad; usually distant and powdered with the white spores._

=ectypa=, Fr. P. 4-7 cm. exp. then depr. revolute, dingy yellow or rufescent, slightly streaked with dark fibrils, edge slightly striate; g. adnate, pallid then spotted with red and powdered with the spores; s. 5-10 cm. dingy yellowish, fibrillose; sp. 9 x 6.

[=difformis=, Pers. P. convex, plane, subumbil. glabrous, hygr. striate when moist, even when dry, at length subsquamulose, livid then whitish; g. adnate, distant; s. hollow, glabrous, shining.

var. _stygia_, Fr. P. campan. umbil.; g. adnexed, ventricose; s. long, slender.

[=incompta=, Fr. P. plane then depr. blackish olive, virgate with adglutinated blackish fibrils, viscid; g. pale grey; s. fibrillosely striate, grey.

[=xanthophylla=, Bres. P. convex-umbil. dry greyish-hoary, virgate especially at centre with brownish fibrils; g. decur. clear yellow; s. greyish-white, fibrillose.

[=nigropunctata=, Secr. P. exp. umb. whitish, mealy, disc dotted with black; g. crowded, pallid then yellowish; s. hollow, striate with black.

[=pachyphylla=, Fr. P. convexo-plane, dingy yellow or rufescent, floccosely squamulose; g. thick, distant, yellow; s. tough, yellow.

var. _absinthiata_. P. scurfy-squamulose, brown-ochre; g. very broad, grey then pallid.

=bella=, Pers. P. 2-3 cm. exp. depr. or umbil. orange yellow with darker squamules; g. yellow, connected by veins, mealy; s. 4-5 cm. yellowish; sp. 6-7, subgl. warted.

=laccata=, Scop. (= _Laccaria_, B. and Br.). P. exp. subumbil. irreg. mealy subsquamulose, violet or brown, whitish when dry, 2-4 cm.; g. thick, distant, coloured like p., mealy; s. 4-7 cm. fibrous, colour of p.; sp. globose, warted, 8-9.

=proxima=, Boud. P. 2-3 cm. convex then plane, glabrous, yellowish-brown; g. adnato-decurrent, pinkish; s. 6-7 cm. even, smooth, paler than pileus; sp. 7 x 3.5.

Resembling the brown form of _C. laccata_, differing in the elliptical, warted spores and glabrous pileus.

[=sandicina=, Fr. P. convexo-plane, umbil. deformed, even, hygr. at length greyish-mealy; g. adnate, crowded, purplish, almost naked; s. hollow, unequal, glabrous, purplish.

[=grumata=, Scop. P. campan.-convex, glabrous, cracked into squamules, disc depr. yellow; g. broadly adnate, distant, white; s. equal, pallid.

=sadleri=, Berk. This is only an abnormal condition of _Hypholoma fasciculare_.

OMPHALIA, Fr.

I. COLLYBIARII. _Pileus expanded from the first, edge incurved._

* _Usually large, gills narrow, closely crowded._

=hydrogramma=, Fr. Livid white, white when dry. P. 4-7 cm. flaccid, thin, umbil. hygr. edge spreading, striate; g. closely crowded; s. 6-8 cm. base rooting; sp. ----.

Differs from _Clito. phyllophila_ in polished stem.

[=chrysoleuca=, Fr. P. very thin, umbil. shining, white, edge reflexed, substriate; g. yellowish; s. smooth, base thickened; sp. 8-10 x 4.

[=ventosa=, Fr. P. infundib. glabrous, flaccid, flesh-colour, hygr.; g. white then flesh-colour; s. colour of p.

[=dumosa=, Fr. P. very thin, plane, subumbil. rigid, deep brick-red; g. pallid; s. glabrous, colour of p.

=detrusa=, Fr. P. 2-3 cm. rather fleshy, umbil. dark grey; g. with a decur. tooth, whitish; s. 2-3 cm. glabrous, dark grey; sp. ----.

[=umbilicata=, Fr. P. umbil. then infundib. edge reflexed, even, hygr. tinged brown, then pale but disc darker; g. whitish; s. terete, apex striate with white fibrils; sp. 6-8 x 4.

=maura=, Fr. P. 2-4 cm. thin, deeply umbil. hygr. striate, sooty brown, pale and silky when dry; g. shining white; s. 3-5 cm. rigid, straight, blackish; sp. 5-6 x 3-4.

Differs from _Col. atrata_ in decur. narrow gills.

[=lituua=, Fr. P. thin, plane, deeply umbil. hygr. even, bay then tan; g. grey; s. slightly wavy, grey.

=offuciata=, Fr. P. 2-3 cm. plano-depr. flesh-colour then pale; g. colour of p.; s. 4-5 cm. glabrous, reddish; sp. ----.

[=scyphoides=, Fr. Shining white. P. infundib. silky, unequal; g. narrow; s. subvillose, short; sp. 6 x 2.

[=albula=, Q. P. umbil. thin, wavy, glabrous; s. solid, slender, incurved; g. adnato-decur. unequal, yellowish; sp. 10-12 long.

[=Giovanellae=, Bres. P. thin, convex and umbil. then exp. and umbil., edge striate, silky-flocculose, grey then hoary brown; g. decur. crowded, colour of p.; s. glabrous, colour of p.; sp. 8 x 3.

Differs from _Omp. scyphoides_ in hoary-grey colour of every part.

** _Medium size; gills rather distant, narrow, narrowed at both ends._

=chrysophylla=, Fr. P. 2-4 cm. thin, umbil. flaccid, floccose, brownish yellow then paler, edge reflexed; g. deep golden yellow; s. 3-5 cm. yellow; sp. 8 x 4.

Differs from _O. Postii_ in the floccose pileus.

=Postii=, Fr. P. 2-3 cm. thin, umbil. glabrous, orange; g. whitish; s. 4-6 cm. glabrous, yellow; sp. ----.

var. _aurea_, Mass. P. very regular; g. slightly decur.; sp. 7 x 3.5.

=vesuviana=, Brig. P. infundib. orange, edge at length wavy; g. thickish, narrow; s. fibrillose, colour of p.

=pyxidata=, Bull. P. 1.5-2 cm. thin, infundib. rufous-red, radiately striate, pale when dry, hygr.; g. flesh-colour then yellowish; s. 1.5-2 cm. tough, pale tawny; sp. 7-8 x 5-6.

=leucophylla=, Fr. P. 3-4 cm. thin, quite infundib. dark grey, even; g. shining white; s. 3-5 cm. grey; sp. 10 long.

=Luffii=, Mass. Fragrant. P. 2-3 cm. convex then depr. glabrous, pallid then white; g. crowded, decur. pallid; s. 2-3 cm. solid, pallid, polished, often wavy; sp. 5 x 3.

Ground among grass &c. Differs from _Clito. fragrans_ in short, polished stem.

=costatula=, Bres. P. infundib. then revolute, brown, glabrous, edge striate wavy; g. decur. straw-colour, joined by veins; s. glabrous, tinged straw-colour, base brownish; sp. 6 x 4.

=striaepileus=, Fr. P. 2-3 cm. plane, umbil. glabrous, entirely striate, livid brown, hygr.; g. white; s. 4-5 cm. tough, tinged brown; sp. rough, 6-7.

=Nevillae=, B. P. 1-1.5 cm. depr. rugose, disc granulated, striate, brown then pale; g. white, veined; s. 2-3 cm. brownish, rough, base downy; sp. ----.

_O. affricata_ differs in scaly p.

=sphagnicola=, B. P. 2-3 cm. thin, soon deeply umbil. squamulose, dingy ochraceous; g. dingy ochre; s. 3-4 cm. slightly flexuous, colour of p.; sp. 6 x 3.

=telmatiaea=, B. P. 3-7 cm. thin, pliant, soon infund. edge arched and drooping, umber, hygr. pale and silky when dry; g. pallid; s. 2-4 cm. grey, base cottony, white; sp. 7 x 4.

[=affricata=, Fr. P. umbil. then infundib. not striate, edge bent down, everywhere with blackish squamules; g. grey; s. glabrous, greyish.

[=epichysia=, Pers. Soft. P. thin, exp. umbil. sooty grey, pallid when dry, silky or floccosely scaly; g. plano-decur. whitish then grey; s. grey; sp. 8-10 x 4-5.

=philonitis=, Lasch. P. 1-2 cm. deeply umbil. edge erect, hygr. floccose when dry, grey; g. deeply decur. greyish; s. 3-5 cm. glabrous, grey; sp. 5-7 x 3.5.

Differs from _O. oniscus_ and _O. epichysium_ in erect margin of p.

[=campestris=, Rom. P. campan. umbil. then exp. sooty-fuscous, sulcate when dry; g. greyish-white, decur.; s. equal, glabrous, colour of p. Appearing late in the season; glabrous; sp. 9-13 x 6-8.

=oniscus=, Fr. P. 1.5-2.5 cm. thin, infundib. wavy, flaccid, glabrous, even, grey; g. grey; s. 2-3 cm. wavy, grey; sp. 6 x 5.

[=oniscoides=, Karst. P. convex-umbil. sometimes reflexed and concave, glabrous, everywhere pellucidly striate, sooty or livid fuscous, pallid grey when dry; g. adnate, then subdecur. white or greyish, edge denticulate, s. tinged fuscous, base darkest; sp. 5-6 x 4.

=caespitosa=, Bolt. P. 1-2 cm. thin, hemisph. umbil. sulcate, whitish ochre; g. whitish; s. 1-2 cm. coloured like p., base thickened; sp. 6 x 5.

[=arenicola=, Fr. P. thin, cup-shaped, wavy, with wart-like spots, umber; g. paler than p.; s. short, umber.

=glaucophylla=, Fr. P. 1-1.5 cm. infundib. plicato-striate, hygr. mouse-colour then paler; g. olive; s. stuffed, firm; sp. ----.

=rustica=, Fr. P. 5-8 mm. thin, slightly convex, umbil. striate, hygr. greyish brown then paler and silky; g. grey, edge arcuate; s. 2-2.5 cm., colour of p.; sp. ----.

Differs from _O. umbellifera_ by gills being narrowed behind.

[=scyphiformis=, Fr. White. P. infundib. glabrous; g. decur. thin; s. thin, short, glabrous.

Differs from _O. scyphoides_ in glabrous stem.

*** _Gills truly distant, broad, usually thick._

[=tricolor=, A. and S. P. ochraceous white, thin, umbil.; g. orange, at first with rosy pruinose; s. yellowish.

[=cortiseda=, Karst. P. convex then plane, radiato-striate, glabrous, pallid; g. adnato-decur. very distant, thickish, few, pallid; s. equal, hyaline, pallid; sp. 10-11 x 4-6.

[=sciopoda=, Q. P. convex then umbil. rather crisped, pale straw-colour, pruinose; g. adnate, thick, sometimes branched, straw-colour then tinged rose; s. slender, wavy, velvety-pruinose, white above, grey below.

=demissa=, Fr. P. 1-1.5 cm. thin, plane then umbil. striate, shining rufous then pale; g. purplish; s. 1 cm., colour of p.; sp. 7 x 5. (10-12 x 6-8 Sacc.)

[=grisella=, Karst. P. convex, disc depr. silky, sulcate, pale fuscescent, whitish when dry; g. adnate, distant, plane, whitish; s. equal, glabrous, apex pruinose, pale, becoming more or less smoky; sp. 6-10 x 2-4.

=hepatica=, Fr. P. 1.5-2.5 cm. tough, rigid, infundib. glabrous, brownish flesh-colour then pale; g. narrow, whitish, connected by veins; s. 2 cm. very tough, colour of p.; sp. 5-8 x 2-4.

Differs from _O. pyxidata_ in toughness, even edge of p. and pallid gills.

=muralis=, Sow. P. 1-2 cm. becoming infundib. radiato-striate, rufous brown; g. pallid; s. 1-1.5 cm. glabrous, coloured like p.; sp. rough, 10 x 5.

[=cuneifolia=, Karst. Very fragile. P. convex then plane, obtuse, dry, glabrous, pellucidly striate when moist, sooty, tan when dry; g. adnate, distant, thickish; broad, ventricose or broadest in front, obliquely truncate, greyish; s. apex scurfy, solid; sp. 10-12 x 9-10.

[=lilacina=, Laest. P. plane, violet then pale; g. deeply decur. connected by veins, yellow; s. persistently violet.

=umbellifera=, L. P. 1-2 cm. convexo-plane, radiately striate, even and rather silky when dry, grey, yellow, brownish, pallid, &c.; g. very distant and broad behind, colour of p.; s. 1 cm. colour of p.; sp. 3 x 2.5.

var. _myochroa_, Fr. P. brownish umber; s. strigosely rooting.

var. _abiegena_, B. and Br. Pale yellow.

var. _viridis_, Fl. Dan. Every part pale green.

[=Kalchbrenneri=, Bres. P. tough, convex, umbil. subexp. glabrous, hygr. subochre; g. deeply decur. whitish; s. colour of p., base often brownish; sp. 8-10 x 4-5.

[=velutina=, Q. Downy, greyish. P. umbil. striate; g. arcuate; s. filiform, base white floccose; sp. 8 long.

=infumata=, B. and Br. P. 3-4 mm. obtuse, greenish then smoky; g. few, broad, yellow; s. 2 cm. thin, yellow, tomentose below.

[=griseolilacina=, Steinh. Entirely greyish lilac, grey when dry; p. umb. then exp. edge incurved, even, glabrous; g. adnate then decur.; s. cylindrical, equal; sp. 6-9 x 4-5.

=buccinalis=, Sow. White. P. up to 1 cm. trumpet-shaped, plane or depr.; g. deeply decur. triangular; s. expanding into p.; sp. ----.

[=hirsuta=, Q. (= _O. caricicola_, Lasch). Hyaline-white, soon flaccid. P. umbil. convex, very thin; gills or folds obliterated; s. capillary, short, pilose, base bulbillose; sp. rough, 9 long.

=retosta=, Fr. P. 1-2 cm. plano-depr. umber, polished and pale when dry; g. distant, broad, narrowed at both ends, paler than p.; s. 2 cm. glabrous, paler than p.; sp. ----.

Differs from _O. umbellifera_ in having gills narrowed behind.

=abhorrens=, B. and Br. Foetid. P. 1-1.5 cm. umbil. brown then pale; g. narrow, pale; s. 2 cm. slender, apex thickened, colour of p.; sp. ----.

=pseudoandrosacea=, Bull. P. convex, umbil. then infundib. plicate, edge crenulate, whitish or grey; g. deeply decur. segmentoid; s. slender; sp. 5-7 x 3-4.

=griseo-pallida=, Desm. P. plane, umbil. even, glabrous, brownish grey then pale; g. broadest behind, grey; s. stuffed, fuscous, 1 cm.; sp. ----.

Differs from _O. umbellifera_ and _O. rustica_ by p. not being striate when moist.

=albidopallens=, Karst. P. convex, orbicular, scarcely umbil. pellucidly striate, naked, hyaline white or pallid; g. adnate, decur. crowded, pallid; s. equal, naked, pallid; sp. 4-5 x 3.

[=schizoxylon=, Fr. P. thin, almost plane, umbil. glabrous, grey; g. narrow, paler than p.; s. rufous brown.

[=bibula=, Q. P. umbil. when moist, silky, olive-yellow then grey; g. arcuate, broad, citrin; s. tinged citrin.

Near to if not identical with _Hygr. Wynniae_.

=stellata=, Fr. White. P. convex, umbil. diaphanous, striate; g. very distant, thin, broad; s. equal, base radiately floccose; sp. 4 x 6.

II. MYCENARII. _P. at first campanulate, margin straight, adpressed to stem._

* _Gills broad, perfect, unequal._

=campanella=, Batsch. P. 1 cm. convex, umbil. striate, hygr. rusty yellow; g. connected by veins, arcuate, yellow; s. 2-3 cm. horny, bay, base narrowed, tawny-strigose; sp. 6-7 x 3-4.

var. _badipus_, Cke. Base of s. slightly bulbous.

var. _papillata_, Fr. P. acutely conical.

var. _myriadea_, Kalchbr. Small, caespitose.

[=incomis=, Karst. P. convex, umbil. glabrous or broken up into squamules, pale fuscous; g. adnato-decur. broad, white; s. tough, thinner below, colour of p.; sp. ----.

[=psilocyboides=, Karst. P. convex, umbil. glabrous, tawny yellow; g. very broad, yellowish-white; s. 8-12 cm. equal, bay, white-fibrillose, apex paler and pruinose; sp. ----.

[=brunneola=, Q. Chestnut umber. P. umbil. squamulose; g. arcuate, white; s. floccosely punctate, base with spreading fawn-coloured down; sp. 10.

[=atripes=, Rab. P. thin, plano-depr. infundib. brown, pale and silky shining when dry; g. very broad behind, brownish, albo-pruinose; s. black, base bluish-pruinose.

[=Laestadii=, Fr. P. hemispherical, umbil. even, tawny-bay, shining; g. distinct, yellow; s. rigid rufous bay.

=picta=, Fr. P. 1 cm. campan. cucullate, umbil. glabrous, striate, fuscous; g. very broad, pallid; s. horny, bay, membranous spreading base tawny; sp. 7-10 x 4.

=camptophylla=, B. P. 1 cm. convex then exp. deeply striate, disc brown, rest pale grey; g. ascending then abruptly decur. white; s. 3-4 cm. very slender, whitish, base radiately strigose; sp. 8-10 x 6-8.

[=cyanophylla=, Fr. P. thin, camp. umbil. striate, livid or bluish becoming yellowish; g. clear blue; s. glabrous; sp. 5-7 x 3-4.

[=Cornui=, Q. P. umbil. tawny; g. yellow with violet tinge; s. horny, bay, base inflated, downy, yellow.

[=reclina=, Fr. P. thin, rigid camp. then entirely infundib. livid; g. thick, white or grey; s. tough; sp. 6 x 4-5.

[=deflexa=, Karst. P. campan.-convex, mostly umbil. everywhere striate, fuscescent or pale livid, pale when dry; g. decur. arcuate, white; s. solid, tough, pallid, glabrous; sp. 6-7 x 4-6.

=umbratila=, Fr. P. 2 cm. thin, campan. then convex, umbil. umber brown, hygr.; g. broad, brownish; s. 3-4 cm. stuffed, brownish; sp. 7 x 5.

Readily mistaken with _Coll. atrata_ and _C. ambusta_, differs in subdecur. gills.

[=invita=, Karst. P. convex, umbil. glabrous, striate when moist, sooty or livid sooty, pale when dry; g. adnate, very broad, white; s. colour of p.; sp. glob. 5-6.

=grisea=, Fr. P. 1-1.5 cm. camp. glabrous, everywhere striate, livid grey then hoary; g. distant, greyish; s. greyish-white, apex thickened, 5-7 cm.; sp. 7-8 x 4.

[=setipes=, Fr. P. convex, subpapillate, everywhere striate, brownish-grey; g. greyish white, connected by veins; s. filiform, base pubescent; sp. 6-7 x 2-3.

=fibula=, Bull. P. up to 1 cm. cucullate then exp. umbil. striate, orange yellow then pale; g. deeply decur. pale; s. 3-4 cm. very slender, weak, pale orange; sp. 4-5 x 2.

var. _Swartzii_, Fr. Apex of stem violet.

[=chlorocyanea=, Pat. Small, entirely bluish green outside and inside. P. convex; g. distant, decur. unequal; s. solid, slender.

=directa=, B. and Br. P. 2-3 mm. nail-shaped flat at apex, white; g. decur. white; s. rather wavy, 2 cm. whitish, tinged rufous, with long hairs at base.

=belliae=, Johnst. P. 1 cm. thin, dry, top-shaped, infundib. pallid; g. decur. thick, veined; s. 2-3 cm. brownish, adhering by a cottony base.

[=pectinata=, Rom. Entirely white, glabrous, hygr. P. thin, convex, umbil. edge wavy or lobed, sulcate to middle; g. decur. distant; s. subequal, almost glabrous; sp. 6-7 x 3.

=gracillima=, Weinm. Snow-white. P. 4-5 mm. downy, sulcate; g. decur. distant, thin; s. 1.5 cm. filiform, base cottony; sp. 6-7 x 3.

[=gracilis=, Q. Snow-white. P. apiculate, striato-sulcate, glabrous; g. arcuate, distant; s. filiform, pellucid, pruinose, base downy, rooting; sp. 8 x 2.

[=candida=, Bres. Shining white. P. thin, convex, exp. often papillate, glabrous, pellucidly striate; g. deeply decur. connected by veins at base; s. splitting into fibres, glabrous, base rooting, strigose; sp. 9-11 x 4.5-5.

=bullula=, Brig. White. P. 3-4 mm. even, hemisph. diaphanous; g. arched, decur.; s. 2 cm. filiform.

** _Gills fold-like, narrow._

=integrella=, Pers. White. P. 3-7 mm. hemisph. then exp. pellucid-striate; g. equal, fold-like, distant, rather branched; s. very slender, pubescent; sp. 6-7 x 4.

[=microscopica=, Wirt. Minute, diaphanous. P. 3-4 mm. infundib. 4-6, sulcate; g. very narrow, arcuate; s. capillary.

=polyadelphus=, Lasch. Pure white. P. 2-3 mm. coarsely striate and minutely flocculose; g. decurrent; s. 1-2 cm. very slender, base downy; sp. 5 x 2.5.

[=cuspidata=, Q. Hyaline white. P. very acuminate, striate, flocculose; g. decur. branched; s. filiform, pulverulent, the slight bulb hairy; sp. 8 long.

[=crispula=, Q. White, diaphanous. P. crisped, pruinose; g. wrinkled, very thin; s. short, filiform, pruinose; sp. 8 long.

[=gibba=, Pat. (= _Cyphella infundibuliformis_, Fr.). White, minute. P. trumpet-shaped, gibbous then deeply infundib. downy; g. mere traces of folds; s. slender, downy.

PLEUROTUS, Fr.

A. EXCENTRICI. _Pileus entire, extended laterally, excentric but not truly lateral._

* _Veil forming a ring on the stem._

=corticatus=, Fr. P. 8-18 cm. convex then exp. covered with dense greyish down then floccosely squamulose; g. decur. white, anastomosing behind; tinged yellow when old; s. 3-7 cm. subexc. rooting, ring torn; s. 9-14 x 4-6.

[=Albertinii=, Fr. P. convex, dimidiate, sooty, with black squamules; g. decur. distinct, white; s. with black squamules up to sooty ring.

=dryinus=, Pers. P. 5-9 cm. oblique or subcircular, hard, whitish with brownish spot-like squamules, flesh white then yellowish; g. decur. not anastomosing behind, white tinged yellow; s. 2-3 cm. sublateral, ring fugacious, torn; sp. 10 x 4.

Differs from _P. corticatus_ in gills not anastomosing behind.

=spongiosus=, Fr. P. 5-8 cm. spongy, pulvinate, greyish tomentose; g. sinuato-adnexed, white, simple; s. 1-3 cm. tomentose, white, ring white, soon torn; sp. 8-10 x 4.

[=calyptratus=, Lindbl. P. soft, lateral-dimidiate, horizontal, reniform, glabrous, viscid, sooty or livid; g. adnate to a nodule, crowded, white then yellowish; s. a downy nodule, viscid membranous ring torn.

** _Gills sinuate or obtusely adnate._

=ulmarius=, Bull. P. 8-15 cm. convex then plane, glabrous, livid then pale, spotted; g. adnexed, broad, whitish; s. 1-3 cm. base thickened, tomentose; sp. 5-6, glob.

=tessulatus=, Bull. P. 7-10 cm. convex then plane or depr. behind, glabrous, tawny then paler and spotted; g. uncinato-adnate, white then yellowish; s. 1-3 cm. glabrous; sp. ----.

[=pardalis=, Schulz. Caespitose. P. fleshy, convex, subcentral, glabrous, chestnut then spotted; g. free, crowded, pallid; s. stout, solid, connate at base, white.

[=decorus=, Fr. Yellow. P. thin, convex then exp. obtuse, rough with adnate blackish scales; g. obtusely adnate, crowded; s. stuffed then hollow, fibrillose; sp. glob. 6.

[=ornatus=, Fr. P. convexo-plane, umb. with rusty floccose squamules that disappear; g. adnate, very broad, yellow; s. spongy, yellow; sp. 6 long.

[=properatus=, C. Mart. P. membranous, form various, always umbil. central or excentric, yellowish white with concentric brown scales; g. adnato-decur. tinged yellow, edge eroded; s. cylindric with concentric brown scales, ring membranaceous, fugacious.

=subpalmatus=, Fr. P. 7-12 cm. Caespitose. Convex then depr. rugulose, rufescent, cuticle gelatinous; g. adnate, connected behind, dingy; s. 3-4 cm. incurved; sp. ----.

Remarkable for the variegated flesh.

[=coripellis=, Fr. P. rigid, glabrous, moist, somewhat bay, thick pellicle separable, disc compact, umb.; g. arcuato-adnate, plane, crowded, white; s. excentric, vertical, rigid, fibrillosely striate, whitish.

P. almost black but fawn or yellow-brown when dry. Flesh tinged fuscous.