NATURAL HISTORY SURVEY 73 



ENTOLOMA. 



Veil wanting; stem fibrous, soft, sometimes waxy; pileus some- 

 what fleshy, margin incurved; hymenophore continuous with the 

 stem; lamellae sinuate-adnexed behind or separating. Growing 

 on the ground. Spores rosy, angular. 



Pileus hygrophanous 1 



Pileus not hygrophanous 2 



1. Stem fibrillose, stuffed then hollow E. clypeatum. 



1. Stem smooth, hollow E. rhodopolium. 



2. Stem solid, white E. grande. 



2. Stem becoming hollow, white streaked with 



black E. nigricans. 



Entoloma clypeatum L. 



Pileus lurid when moist, when dry gray and variegated or 

 streaked with darker spots or lines, fleshy, campanulate then 

 flattened, umbonate, smooth, fragile. 



Lamellae rounded-adnexed, separating free, 6 to 12 mm. 

 broad, ventricose, somewhat distant, dingy, then red-pulverulent 

 with the spores, serrulated on the edge, chiefly behind. 



Stem stuffed, at length hollow, wholly fibrous, equal, round, 

 fragile, longitudinally fibrillose, becoming cinereous, pulverulent 

 at the apex. 



Pileus 7.5 cm. broad; stem 7.5 cm. long, 6 to 12 mm. thick. 



On the ground in woods. Riverside. May. Wyrick. Ac- 

 cording to Mcllvane the species is poisonous. 



Entoloma rhodopolium Fr. 



Pileus hygrophanous, when young or moist fuscous or livid, 

 becoming pale when full grown, when dry isabelline-livid, s ; !ky- 

 shining, slightly fleshy, campanulate then expanded and some- 

 what umbonate, at length rather plane and sometimes depressed, 

 fibrillose when young, smooth when full grown; flesh white. 



Lamellae adnate then separating, somewhat sinuate, slightly 

 distant, 4 to 8 mm. broad, white then rose-color. 



Stem hollow, equal when smaller, when larger attenuated 

 upwards, and white pruinate at the apex, otherwise smooth, 

 slightly striate, white. 



Spores irregular, angled, 6 to 10 /*. 



A plant found in the woods at Dolton, by Mr. J. W. Sercomb, 

 was referred by him to this species. In luxuriant specimens the 

 stems were enlarged at the apex, in smaller 'ones equal. Spores 

 with irregular angles, 8 to 10 \i. 



Entoloma grande Pk. 



Pileus fleshy, thin towards the margin, glabrous, nearly plane 

 when mature, commonly broadly umbonate and rugosely wrinkled 

 about the umbo, moist in w r et weather, dingy yellowish-white 

 verging to brownish or grayish-brown; flesh white; odor and 

 flavor farinaceous. 



