these are drawn into triangular scales
which are easily washed apart by the rains. The color is tawny or light
yellowish with intermediate shades, darker on the umbo and becoming
darker in age, sometimes umber colored, and stained with black,
especially after rains where the spores are washed on the pileus. The
flesh is tinged with light yellow, or tawny, or brown, soft, and easily
broken. The =gills= are sinuate, adnate, somewhat ventricose, very
rarely in abnormal specimens anastomosing near the margin of the pileus,
at first light yellowish, then shading to umber and spotted with black
and rusty brown as the spores mature, easily breaking away from the
stipe, whitish on the edge. Drops of moisture sometimes are formed on
the gills. =Basidia= abruptly clavate, 30--35 x 10--12 mu. =Cystidia=
hyaline, thin walled, projecting above the hymenium 40 mu, and 14--15 mu
broad. Spores black, purple tinged, broadly elliptical and somewhat
curved, 9--11 x 7--8 mu.

The =stem= is fleshy to fibrous, the same color as the pileus, floccose
scaly more or less up to the veil, smooth or white pruinose above the
veil, straight or curved, somewhat striate below.

The =veil= in young plants is hairy, of the same texture as the surface
of the pileus, torn and mostly clinging to the margin of the pileus, and
disappearing with age.

The general habit and different stages of development as well as some of
the characters of the plant are shown in Fig. 28 (No. 4620 Cornell
University herbarium). The edible qualities of this plant have not been
tested.

=Hypholoma rugocephalum= Atkinson.--This interesting species grows in
damp places in woods. The plants are tufted or occur singly. They are
8--12 cm. high, the cap 6--10 cm. broad, and the stem 6--10 mm. in
thickness.

The =pileus= is convex to expanded, and the margin at last revolute
(upturned). The surface is marked by strong wrinkles (rugae), which
radiate irregularly from the center toward the margin. The pileus is
broadly umbonate, fleshy at the center and thinner toward the margin,
the flesh tinged with yellow, the surface slightly viscid, but not
markedly so even when moist, smooth, not hairy or scaly, the thin margin
extending little beyond ends of the gills. The color is tawny (near
fulvus). The =gills= are adnate, slightly sinuate, 5--7 mm. broad, in
age easily breaking away from the stem and then rounded at this end,
spotted with the black spores, lighter on the edge. The =s