70 THE CHICAGO ACADEMY OF SCIENCES 



Not as bright colored as L. sepiaria, nor so distinctly zoned; 

 the lameljae closer, thinner and more anastomosing, forming 

 pores toward the outer margin almost as in the genus Polypsrus. 



On railroad ties, Evanston. Gammon. Waukegan. Usually 

 blackened by the dirt of passing trains. On pine logs. Millers, 

 Ind. May be a synonym of Daedalea pallido-fulva Berk. 



SCHIZOPHYLLUM. 



Pileus fleshless, arid; lamellae coriaceous, fan- wise branched, 

 united above by the tomentose pellicle, bifid, split longitudinally 

 at the edge, the two halves commonly revolute. Growing on 

 wood. 



Spores somewhat round, white. 

 Schizophyllum commune Fr. 



Pileus adnate behind, somewhat extended, simple and lobed. 



Lamellae gray then brownish-purple, villous, the edge revo- 

 lute. 



Spores very small, almost globular (W. G. Smith) ; oblong, 

 somewhat apiculate, 5 to 6 x 2.5 /u,. (A. P. Morgan.) 



Upper surface of the pileus whitish or gray, densely tomentose, 

 margin strongly involute, so that the plants are conchate in form, 

 5 mm. to 2.5 cm. broad. Spores white, oblong but somewhat 

 irregular in outline, 5 to 6 x 1,5 ft. Common on dead twigs and 

 branches of various trees, August to January. Often growing 

 luxuriantly during mild weather in midwinter. 



VOLVARIA. 



Universal veil free, persistent, distinct from the epidermis of 

 the pileus, constituting a volva; hymenophore distinct from the 

 stem; lamellae rounded behind and free, ventricose. Spores rosy. 



Pileus viscous or glutinous 1 



Pileus dry, fibrillose 2 



1. Pileus gray, disk umber V. speciosa. -4 



1. Pileus fuliginous V. gloiocephala. 



2. Pileus 7 cm. or more broad V. bombycina. 



2. Pileus 10 to 15 mm. broad V. pusilla. 



Volvaria speciosa Fr. 



Pileus whitish, gray or umber at the disk, fleshy, globose when 

 young, then campanulate, at length plane and somewhat umbon- 

 ate, even, smooth, viscous; flesh soft, floccose, white. 

 Lamellae free, flesh-colored. 



Stem solid, firm, slightly attenuated from the base as far as 

 the apex, when young white-villous and tomentose at the base, 

 then becoming smooth, white. Volva bulbous rather than lax, 

 free however, variously torn into loops, membranaceous, extern- 

 ally tomentose, white. 



Pileus 7.5 to 12.5 cm. broad; stem 10 to 20 cm. long, as much 

 as 2.5 cm. thick. Spores ellipsoid or ellipsoid-sphaeroid, 12 to 

 18 x 8 to 10 /A. 



Rich soil of an alley; Ravenswood. May. Pepoon. 



