Leucosporae 



The American species of Omphalia number between thirty-five and Omphaiia. 

 forty. Many of them are common. Few woods are free from them. 

 Several of them are beautiful. They are usually small and lacking in 

 substance. Raw, the writer has not found one that is objectionable in 

 any way; a few have a woody taste. But two species have been found 

 by him in sufficient quantity to make a dish. It is probable that all are 

 edible. At best the species of Omphalia are valuable in emergency only. 



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. 

 * Piletts dilated from the first; margin incurved. 



0. onis'cilS Fr. Gr. a wood-louse. From the ashy color. Pileus 

 scarcely i 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 I in. long, i line and 

 more thick, stuffed then tubed, slightly firm, moderately tough, some- 

 times round, curved, sometimes unequal, compressed, ascending, un- 

 dulated, gray. Gills shortly decurrcnt, somewhat distant, quaternate, 

 ash-color. Not cespitose. Fries. 



Spores i2x;-S/A B. 



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

 edible. 



0. limbellif'era umbella, a little shade; fero, to bear. From its um- 

 brella-like shape. (Plate XXXIV, p. 132.) Pileus about % in. broad, 

 commonly whitish, slightly fleshy-membranaceous , convex then plane, 

 broadly obconic with the decurrent gills, not at all or only slightly um- 

 bilicate, hygrophanous, when moist watery, rayed with darker stria, 



133 



