ANALYSIS OF TRIBES.

COLLYBARII.

[*] Pileus dilated from the first, margin incurved.

MYCENARII.

Pileus campanulate at first, margin straight and pressed to the stem.

COLLYBA´RII.

* Pileus dilated from the first; margin incurved.

O. onis´cus Fr. Gr.—a wood-louse. From the ashy color. Pileus scarcely 1 in. broad, dark ashy becoming pale, gray-hoary when dry, somewhat membranaceous, or slightly fleshy, flaccid, fragile when old, convexo-umbilicate or funnel-shaped, often irregular, undulato-flexuous, even-lobed, smooth, even, margin striate. Stem 1 in. long, 1 line and more thick, stuffed then tubed, slightly firm, moderately tough, sometimes round, curved, sometimes unequal, compressed, ascending, undulated, gray. Gills shortly decurrent, somewhat distant, quaternate, ash-color. Not cespitose. Fries.

Spores 12×7–8µ B.

Massachusetts, Sprague; California, H. and M., who record it as edible.