NATURAL HISTORY SURVEY 35 



globose spores and from the latter by its whitish color being less 

 clear and persistent. From both it differs in the more strongly 

 decurrent lamellae, pungent taste and disagreeable odor. 



Under a cultivated spruce tree at Wilmette. September and 

 October, 1900 to 1904. Described by Prof. Peck, from specimens 

 collected by Dr. L. H. Watson. 



Clitocybe socialis Fr. 



Pileus pale yellowish with a reddish tinge, fleshy, convex, 

 then expanded, acutely umbonate especially when young, even, 

 smooth, dry; flesh moderately thin, white. 



Lamellae plano-decurrent, scarcely crowded, becoming yellow. 



Stem solid, fibrous, commonly ascending, smooth, reddish, the 

 rooting base hairy. 



Pileus 2.5 cm. broad; stem 2.5cm. long, 4 mm. or a little more 

 thick. 



Gregarious among dead leaves, wooded hillside, Glen Ellyn, 

 September. The stems of our plant are frequently 3.5 to 6.5 cm. 

 long. Remarkable for the very acute umbo of the pileus. Spores, 

 globose, echinulate, 9 to 10 \L. 



Clitocybe odora Bull. 



Pileus greenish, fleshy, convex then flattened, obtuse or ob- 

 soletely umbonate, regular or repand, even, smooth, margin 

 pubescent; flesh rather thin, dingy-white. 



Lamellae adnate-decurrent, slightly distant, broad, entire, 

 commonly paler than the pileus. 



Stem stuffed, equal or enlarged downward and somewhat 

 bulbous, at first floccose-fibrillose, soon naked, commonly white- 

 villous at the base. Tough ; with the odor of anise. 



Spores ellipsoid-sphaeroid, 6 x 5 /A. Pileus, 9 cm. broad; stem 

 5 cm. or more long, 6 to 8 mm. thick. 



Grassy places in woods; often growing on dead leaves and 

 twigs. August to October. Spores subglobose, 6 to 7 x 4 to 5 /x. 

 The beautiful greenish color of the pileus becomes paler as the 

 plants mature. The characteristic odor persists for several years 

 in herbarium specimens. The species is edible. 



Clitocybe multiceps Pk. 



Pileus flesh}', thin except on the disk, firm, convex, slightly 

 moist in wet weather, whitish, grayish or yellowish-gray; flesh, 

 white; taste mild. 



Lamellae close, adnate or slightly decurrent, whitish. 



Stems densely caespitose, equal or slightly thickened at the 

 base, solid or stuffed, firm, slightly pruinose at the apex, whitish. 



Pileus 2.5 to 7.5 cm. broad; stem, 5 to 10 cm. long, 6 to 12 mm. 

 thick; spores globose, 5 to 7.5 p. 



Bank among dead leaves, open woods and railroad station 

 grounds, Glen Ellyn, November. 



Pileus silky-shining, grayish-cervine when dry; stems de- 

 formed by mutual pressure. 



