View A43-1112-1979-eng.pdf

EDIBLE AND POISONOUS MUSHROOMS OF CANADA
mius species to revive after drying but sometimes this distinction is not very
clear-cut and Collybia confluens, for example, might equally well be placed in
Marasmius. Mycena is usually distinguished by the small, more or less conic to
campanulate pilei which do not become expanded, and also by the margin of
the pileus which in the young stage lies straight along the stipe rather than
being incurved or inrolled as in Collybia.
No poisonous species of Collybia are known and some of the larger ones
are considered to be very good but many of the species are too small to be of
any value as food.
Key
1. Fruiting bodies densely cespitose, reddish brown or vinaceous brown;
the stipes glabrous above, tomentose below and
more or less bound together C. acervata
1. Fruiting bodies single, gregarious, or subcespitose 2
2. Stipe deeply rooting C. radicata
2. Stipe not deeply rooting 3
3. Stipe glabrous 4
3. Stipe velvety or tomentose to pruinose 6
4. Fruiting body white becoming spotted or stained rusty brown C. maculata
4. Fruiting body not white 5
5. Lamellae very broad; fruiting body gray C. platyphylla
5. Lamellae narrow; fruiting body reddish tan
to yellowish fawn C dryophila
6. Fruiting body small, usually less than Vi in. broad; stipes arising
from a small sclerotium C. tuberosa
6. Fruiting bodies more than V2 in, broad; stipes not arising from sclerotia 7
7. Stipe velvety, dark brown to black; pileus viscid; on wood C. velutipes
1 . Stipe densely whitish pubescent; pileus not viscid;
usually among fallen leaves on the ground C. confluens
COLLYBIA ACERVATA (Fr.) Kummer Probably edible
Figures 220, 221, page 133
PILEUS %-2 in. broad, convex to nearly plane, glabrous, somewhat hygrophanous,
reddish brown to vinaceous brown, the margin becoming paler and
finally fading over all to nearly whitish, margin slightly striate when moist,
sometimes wavy and irregular and becoming upturned in age. flesh thin,
pallid, taste mild, lamellae free to adnexed, crowded, narrow, whitish or
tinged reddish, stipe 2-4 in. or sometimes more in length, V8~!4 in. thick,
equal, hollow, glabrous above, whitish tomentose below, densely cespitose
and often bound together with the white mycelium, reddish brown or vina-
ceous brown, often darker than the pileus. spores smooth, white, nonamyloid,
narrowly oblong to ellipsoid, with a prominent apiculus, 5-7 X 2-3 /x.
150
Densely cespitose on the ground or rotten wood. Aug.-Oct.
It is reported to be edible although Smith (1949) describes the taste as