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COLLYBIA
finally pale yellow, flesh very thin, yellowish, odor and taste not distinctive.
LAMELLAE adnate, ventricose, moderately broad, close to subdistant, yellowish
to pinkish-tinged with the edges bright orange, stipe %-2 in. long, about Xq in.
thick, gradually tapering downward, hollow, glabrous, viscid, orange, not
fading as readily as the pileus. spores smooth, white, ellipsoid, 7-9 X 5-6 /x-
In clusters of few to many individuals on old logs and stumps. June-Oct.
The bright orange edges of the lamellae are a distinctive field mark of this
species since they retain their color after the pileus has faded to yellow. The
brilliant colors of this species are certain to attract attention.
MYCENA PURA (Fr.) Kummer
Figure 213, page 133
PILEUS 1/2-1 Vi ill- broad, convex to expanded, usually obtusely umbonate,
smooth, glabrous, moist, hygrophanous, translucent-striate on the margin,
varying in color from rosy red to violet or shades of grayish violet, sometimes
nearly white, flesh moderately thick on the disk, thin on the margin, tinged the
color of the pileus or whitish, odor and taste of radish, lamellae adnate to
sinuate at the stipe, broad, subdistant to moderately close, interveined, vari-
able in color, white or more often tinged the color of the pileus. stipe 1 1/2-3 in.
long or longer, i/g-i/i in. thick, equal, hollow, glabrous or pruinose, con-
colorous with the pileus or paler to whitish, sometimes twisted, fibrillose-
striate. spores smooth, white, long-ellipsoid, 6-8 X 3.5-4 f^.
SoHtary or in groups on the ground in woods. June-Oct. Common.
This is a common and widely distributed species and is attractive because
of its beautiful colors. It is one of the larger species of the genus but is too
small to be of value as food.
COLLYBIA
The genus Collybia has usually been defined as comprising those species
with white spores, cartilaginous stipes, the lamellae adnate to adnexed, the
margin of the pileus incurved to inrolled at first, and lacking both annulus and
volva. However, modern taxonomists seem to be generally agreed that this
concept is too broad and brings together many unrelated species. The tend-
ency now is to spht the genus into several genera with Collybia dryophila as
the type of Collybia in a more restricted sense. Since some of the divisions are
based principally on microscopic characters and there is not yet general agreement
as to precise generic limits, for the purpose of this book Collybia is
retained in the older and broader sense.
It is sometimes difficult to draw a distinction between Collybia and
Marasmius on the one hand and Collybia and Mycena on the other. The prin-
cipal diff'erence between Collybia and Marasmius is in the ability of Maras-
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