Saprophytic Fungi of Eastern Iowa. 185 



becoming convex, smooth, hygrophanous; lamellas adnate, 

 seceding, broad, pale cinnamon brown; stipe concolorous, at 

 length hollow, distinctly and persistently annulate. 



Height I '-2'. Pileus about I '. Spores elliptic, .006 x.oo8 

 mm. Autumn. 



A very common little species, found everywhere on rotten 

 logs, etc., in moist ravines; inclined to be coespitose, when it 

 forms a conspicuous object long after the leaves have fallen. 



Subgenus Inocybe. 



Veil universal, concrete with the cuticle of the pileus, and 

 sometimes dependent from the margin in form of cobwebby 

 threads. Some forms resemble species of the genus CortinariuSy 

 but differ in having the lamellae moist, or at least not dusted 

 by the seceding spores. 



28. Agaricus lanuginosus. — Bidl. 



Pileus brown, becoming yellowish, somewhat fleshy, hemi- 

 spherical, then expanded, adorned with floccose scales, those 

 on the disk (center) erect, pointed; lamella seceding, thin, 

 denticulate, pale yellow; stipe solid, fibrillose, whitish above. 



Height I '-2'. Pileus i' or less. Spores . 



Rare. A terrestrial species described as occurring under 

 beech trees or in beech forests. The specimens referred here 

 to this species seem to correspond to Fries' descriptions, but 

 occur in our oak groves and undisturbed woodlands generally. 



Subgenus FJanimula. 



Pileus fleshy, margin at first involute. Veil fibrillose or 

 none. Stipe fleshy — fibrous. Lamellse decurrent, or at least 

 adnate. 



29. Agaricus fusus, Batsch. 



Pileus dull brown, compact, convex - expanded, smooth, 

 somewhat viscid; lamellae narrow, decurrent, from dull yellow 

 becoming brown; stipe stuffed, concolorous, fibrillose-striate, 

 sub-fusiform, attenuate, rooted. Annulus none. 



