Part 23

M. leptocephala differs in sulcate p., and M. metata in white gills. M. plumbea has no smell.

=plicosa=, Fr. 1.5-2.5 cm. exp. plicato-sulcate, greyish brown, opaque when dry; g. thick, distant, veined, grey; s. 3-4 cm. polished, greyish; sp. globose, 4-5.

=consimilis=, Cke. P. 1.5-2.5 cm. camp. grey, umbo darker, striate to middle, margin upturned and splitting; g. adnexed, grey; s. 2.5-3.5 cm. dry, smooth, paler than p.; sp. ----.

More or less resembling several species. M. leptocephala and M. metata differ in strong smell. M. peltata in orbicular plane pileus. M. rugosa differs in rugose pileus.

=peltata=, Fr. P. 1.5-2 cm. orbicular, soon plane, disc fleshy, blackish brown then grey, margin striate; g. with decurrent tooth, grey; s. 3-4 cm. even, glabrous, base downy; sp. ----.

Differs from M. pelliculosa in absence of viscid pellicle.

=aetites=, Fr. P. 1.5-2 cm. camp.-convex, coarsely striate, hygr. broad obtuse umbo prominent, brownish; g. uncinate, thin, connected by veins; s. 4-5 cm. glabrous, shining subcompressed; sp. ----.

=stannea=, Fr. P. 2-3 cm. exp. hygr. grey, even, and tin colour with a silky sheen when dry; g. with decurrent tooth, connected by veins, greyish white; s. 5-7 cm. even, shining, often compressed; sp. ----.

Differs from M. vitrea in decurrent tooth to gills.

=vitrea=, Fr. P. 1.5-2.5 cm. livid brown, finely striate all over, no trace of umbo or fleshy disc; g. adnate, not connected by veins; s. 6-9 cm. slightly striate, polished, pale, base fibrillose; sp. ----.

Differs from M. aetites and M. stanneus in gills not having a decurrent tooth and not connected by veins.

=tenuis=, Bolton. White, tufted. P. 1-1.5 cm. brittle, camp. obtuse, then exp. striate; g. adnate; s. 5-7 cm. thin, pellucid, glabrous; sp. ----.

M. gypsea differs in decurrent tooth of gills, and strigose base of stem.

V. FILIPEDES. Stem very slender, flaccid, rooting, dry, juiceless. Gills discoloured, edge paler.

=filopes=, Bull. P. 1-1.5 cm. camp. then exp. striate, livid grey; g. free, white; s. 6-8 cm. flaccid, glabrous, rooting, base downy; sp. ----.

=iris=, B. P. 1-2 cm. exp. obtuse, slightly viscid, striate, blue when young, then brownish with blue fibrils; g. free, tinged grey; s. 3-6 cm. bluish below, tinged brown above, with scattered fascicles of down; sp. ----.

=amicta=, Fr. P. up to 1 cm. conico-camp. greyish, striate to middle, dry, glabrous; g. free, grey; s. 6-10 cm. filiform, tough, downy-pulverulent; sp. ----.

=plumbea=, Fr. P. 1-2 cm. convex then flattened, obtuse, sulcate, lead colour powdered with white meal; g. adnate horizontal, grey; s. 6-8 cm. elongated, pulverulent, grey, apex hyaline, base strigose, fragile; sp. ----.

Differs from P. pura in persistently conical pileus.

=urania=, Fr. P. camp. then convex, dark violet when young, then blue becoming pale; g. uncinato-adnate, white; s. flaccid, even, glabrous, base rather rooting, floccose.

=debilis=, Fr. P. 1-1.5 cm. camp.-convex, striate, whitish or livid then brownish, opaque, rugulose when dry; g. broadly adnate; s. 3-5 cm. flaccid, base fibrillose not rooting; sp. ----.

=vitilis=, Fr. P. 4-7 mm. conical then exp. papillate, deeply striate when moist, brownish or greyish then pale; g. narrowed and adnate, greyish white; s. 6-14 cm. livid, flexile, rooting; sp. ----.

Var. amsegetes, Secr. P. conico-campan. everywhere striate; g. not connected by veins, edge entire; s. thicker, short.

=collariata=, Fr. P. 1-2 cm. convex, subumb. striate, brownish or greyish then pale; g. adnate to a collar, whitish then tinged pink; s. 2-3 cm. pale, polished, tough; sp. ----.

=speirea=, Fr. P. 1 cm. convex, dark disc becoming depr. greyish with brown lines; g. plane then decurrent, shining white; s. 3-4 cm. tough, polished, fibrillosely rooting; sp. ----.

=tenella=, Fr. Tufted. P. up to 1 cm. obtuse, whitish, pellucid, margin striatulate; g. uncinate, white then pink; s. 2 cm. glabrous, base downy; sp. ----.

Caespitose. Altogether white or livid-rosy. Pileus exceedingly delicate.

=acicula=, Schaeff. P. 2-3 mm. camp., orange red, margin striate; g. yellow; s. 2-3 cm. yellowish, base rooting; sp. ----.