icular,
convex, glabrous.

var. _clavicularis_. P. greyish, disc subrotund.

=tenerrima=, B. White. P. 2-3 mm. convex, scurfy; g. free; s. 2-3 cm.
minutely hairy below, fixed by a minute downy disc; sp. subgl. 3-4.

=discopoda=, Lev. White. P. 2-3 mm. conical, obtuse, with white meal; g.
adnate, distant; s. 2-3 mm. mealy, expanding at base into a minute downy
disc; sp. ----.

=saccharifera=, B. & Br. Whitish. P. 2-3 mm. convex; g. arcuately decur.
dusted with shining particles; s. 3-4 mm. filiform, minute disc fixed by
filaments; sp. ----.

var. _eclectica_, Buck. White. P. sulcate, and like gills and stem,
sparkling with granules.

[=mammillata=, Pass. P. conico-campan. mammilate, sulcate, glabrous,
shining white then greyish; g. adnate, broad; s. floccose below, base
ending in a flat orbicular disc.

[=mucor=, Batsch. Minute, fugacious. P. plicate, grey; g. adnate,
distant, greyish white; s. hyaline, white, inserted in an orbicular
disc.

[=echinipes=, Lasch. Minute, white. P. camp. hyaline, striate; g. thick,
distant; s. thickish, glabrous, base slightly bulbous, hairy.

=pterigena=, Fr. Pale rose colour. P. 1-2 mm. camp. obtuse; g. adnate,
broad, distant; s. 4-6 mm. thin, wavy, smooth, ending in a radially
strigose disc; sp. ----.

[=trachelina=, Fr. P. brown, fibrillose; g. adnate, broad
floccoso-fimbriate; s. villosely squamulose, bulbillose, strigosely
rooting.

[=cyanorhiza=, Q. P. striate, greyish white; g. broad, whitish; s.
greyish white, base somewhat swollen, hairy, blue.

IX. INSITITIAE. _Stem very slender, not rooting nor attached by a
disc but penetrating the substratum abruptly. Gills adnate._

=corticola=, Fr. P. 3-6 mm. obtuse, umbil. sulcate, blackish, brown,
grey, &c.; g. adnate, broad; s. 1.5 cm. slender, incurved, minutely
scurfy; sp. ----.

=hiemalis=, Osbeck. P. 4-7 mm. camp. umb. striate, pinkish, rufescent,
white, &c., often pruinose; g. narrow; s. 2-3 cm. curved, base downy;
sp. 7-8 x 3.

Differs from _M. corticola_ in narrow gills, and striate not sulcate
pileus.

=codoniceps=, Cke. P. 2-3 mm. high and 1.5 mm. broad, pale umber, not
exp. sulcate, delicately hairy; g. adnate; s. 4-7 mm. umber below; sp. 5
x 2.5.

=setosa=, Sow. White. P. 1 mm. obtuse, smooth, g. almost free; s. 2-3
cm. slender, covered with delicate spreading hairs; sp. ----.

=capillaris=, Fr. White. P. 2 mm. camp. obtuse, then umbil.; g. adnate,
few; s. 1.5-2.5 cm. hair-like, wavy, glabro