NATURAL HISTORY SURVEY 27 



3. Pileus with furfuraceous or granular scales 6 



6. Pileus white, dry L. naucina. 



6. Pileus white, viscid L. illinita. 



6. Pileus reddish-brown L. granulosa. 



7. Pileus pallid or brown, scales brown- 



ish L. metulaespora. 



7. Pileus white, scales reddish-brown.. . .L. americana. 

 7. Pileus white, scales white, floccOse. . .L. caepestipes. 



Lepiota procera Scop. (Plate I.) 



Pileus at first ovate, then broadly convex or expanded, strongly 

 umbonate, scaly or spotted from the breaking up of the cuticle, 

 whitish, alutaceous or brownish, the deflexed margin generally 

 silky-fibrillose ; flesh soft, white. 



Lamellae close, free or remote, whitish, sometimes tinged with 

 yellow or pink. 



Stem tall, cylindrical or slightly tapering upwards, bulbous, 

 hollow, squamose or furfuraceous, colored like the pileus, some- 

 times spotted; annulus thick, firm, movable, white. 



Spores large, ellipsoid, 14 to 17.5 x 9 to 11 /A. Pileus 7 to 

 15 cm. broad; stem 12 to 25 cm. long, 8 to 12 mm. thick. 



Open woods throughout our district. Infrequent and scat- 

 tered. A plant collected by Mr. C. S. Raddin in Niles woods, 

 1898, was 2.5 dm. high, with pileus 13 cm. in diameter. 



Lepiota Morgan! Pk. 



Pileus fleshy, soft, at first subglobose then expanded or even, 

 depressed, white, the brownish or alutaceous cuticle breaking up 

 into scales except upon the disk. 



Lamellae close, lanceolate, remote, white then green. 



Stem firm, equal or tapering upwards, subbulbous, smooth, 

 webby-stuffed," whitish tinged with brown; annulus rather large, 

 movable; flesh of both pileus and stem white, changing to reddish 

 then yellowish when cut or bruised. 



Spores ovate or subellipsoid, mostly uninucleate, 10 to 12 x 7.5 

 to 8 /M. Pileus 12 to 22 cm. broad; stem 15 to 20 cm. high, 12 to 

 25 mm. thick. 



Open grassy places and in gardens; usually infrequent but 

 occasionally locally abundant. In October, 1898, several hundred 

 plants were found in a pasture a mile west of Wheaton. The 

 ground was low, formerly a pond, but reclaimed by draining two 

 years previously. The usual diameter of these plants was from 

 10 to 15 cm. In a number of instances they grew in crescentic 

 lines or incomplete rings. Very large specimens with pilei mea- 

 suring 22 to 28 x 30 to 35 cm. in diameter have been found in 

 shaded places in gardens in Wheaton. The pileus in these is 

 usually elliptic in outline. 



Although eaten with safety by some persons, this species is 

 poisonous to others, causing vomiting and purging. On this ac- 

 count, and for the reason that it is not particularly appetizing, it 

 is well to avoid it altogether as an article of diet. (For an account 



