28 THE CHICAGO ACADEMY OF SCIENCES 



of the poisonous properties of the species, see Asa Gray Bulletin, 



1900, p. 87.) 



Lepiota Friesii Lasch. (Plate II, Fig. 1.) 



Pileus ferruginous-fuscous, fleshy, torn into appressed, to- 

 mentose scales. 



Lamellae somewhat remote, linear, very crowded, branched. 



Stem hollow with a webby pith, somewhat bulbous, scaly; 

 annulus superior, pendulous. 



Pileus 2.5 to 10 cm. broad; stem 5 to 12 cm. high, 4 to 10 mm. 

 thick. 



Woods, Glencoe. .Also grassy places in parks. Spores oblong, 

 blunt at both ends, 6 to 7 x 3 to 4 /x. 



Lepiota acutesquamosa Weinm. 



Pileus fleshy, obtuse, at first hairy-floccose, then echinate with 

 erect acute squarrose scales, white or yellowish. 



Lamellae approximate, lanceolate, simple. 



Stem somewhat stuffed, stout, bulbous, pruinose above the 

 moderate sized annulus. 



Spores oblong, 7.5 x 3 to 4 /x. Pileus 2.5 to 10 cm. broad; stem 

 5 to 12 cm. high, 4 to iO mm. thick. 



Ground in thickets, River Forest. July. Plants about 3.5 

 cm/ broad; stems 6.5 cm. long. The erect scales are blackish; the 

 stem scarcely bulbous. 



Lepiota cristata A. & S. 



Pileus slightly fleshy, campanulate, obtuse, cuticle at first 

 contiguous, then seceding in subgranulose scales. 



Lamellae free, at length remote, white. 



Stem slender, equal, hollow, silky-fibrillose; t*he annulus se- 

 ceding. 



The surface of the pileus at first is even, reddish or reddish- 

 brown, then white adorned with reddish or reddish-brown scales 

 formed by the breaking up of the cuticle, the disk colored like the 

 scales. 



Spores oblong or narrowly subellipsoid, 5 to 7 x 3 to 4 /x. 

 Pileus 1.5 to 4 cm. broad; stem 2.5 to 5 cm. high, 2 to 4 mm. thick. 



Ground under trees in woods, usually among dead leaves. 

 July to September. Odor offensive. The conspicuous white 

 mycelium often extends a distance of 5 to 8 cm. from the base 

 of the stem, but is not compacted about the base of the plant. 



Lepiota rubrotincta Pk. 



Pileus thin, convex or nearly plane, sometimes slightly and 

 broadly umbonate, at first even with a reddish or pinkish surface, 

 a little darker and sometimes slightly rough on the disk, then 

 adorned with appressed scales formed by the breaking up of the 

 cuticle. 



Lamellae close, free, white or whitish. 



