View A43-1112-1979-eng.pdf

EDIBLE AND POISONOUS MUSHROOMS OF CANADA
yellowish on the disk, margin inrolled, slightly ridged, flesh white, thick, firm,
taste very bitter, odor farinaceous to disagreeable, lamellae adnate to sinuate,
decurrent by lines, narrow, crowded, white to pale cream, stipe 1 )/2-4 in. long,
14-% ill- thick, nearly equal or enlarged at the base, white, at first pruinose to
finely tomentose, becoming fibrillose, solid, spores white, subglobose to
globose, slightly rough, amyloid, 3.5-5.5 X 3.5-4.5 m-
Gregarious to subcespitose on the ground in frondose woods. June-Oct.
The bitter taste, non-anastomosing, close, narrow lamellae, and ridged or
ribbed margin are characteristic of this species. It is fairly common, and will
attract the collector because of its size, but it has a very unpleasant taste.
TRICHOLOMA
Tricholoma is a large genus and the species are often difficult to identify.
Usually they are fairly large forms growing on the ground and often appearing
late in the season. The genus is characterized by the white spores, fleshy stipes,
lamellae adnexed to sinuate and frequently notched at the stipe, and the lack
of a volva or annulus. The type species of the genus is T. flavovirens (Fr.)
Lundell. Some of the species included here, such as T. personatum and T.
irinum, have a creamy to dirty pinkish spore deposit and most authors now put
these in the genus Lepista.
Only some of the more common and easily recognized species are included
here. Many of the species are edible and highly prized, but some are disagree-
able in flavor and a few are known to be poisonous. Therefore, only those
species that can be definitely identified and are known to be edible should
be used.
Key
1. Pileus viscid 2
1. Pileus not viscid 6
2. Fruiting body white J. resplendens
2. Fruiting body not white 3
3. Pileus yellow or yellowish 4
3. Pileus without yellow in the coloration 5
4. Lamellae yellow; pileus yellowish, usually reddish on disk T. flavovirens
4. Lamellae white; pileus yellowish with innate black fibrils T. sejunctum
5. Stipe peronate with reddish orange scales T. aurantium
5. Stipe smooth to minutely fibrillose T. pessundatum
6. Lamellae yellow; pileus tomentose-scaly, purple-red T. rutilans
6. Lamellae white or becoming reddish stained 7
7. Lamellae stained with reddish spots; pileus
fibrillose-scaly, dark reddish brown T. vaccinum
7. Lamellae not reddish spotted 8
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