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Cincinnati Society of Natural History. 



II. PLEUROPUS. 



Stipe ascending, simple, excentric or lateral, lignatile. 



I. Lenti. Pileus tough-fleshy, azonate ; pores short ; context 

 pallid. 



a. Stipe blackish at the base. 



io. P. radicatus, Schw. Pileus fleshy-tough, pulvinate, de- 

 pressed, sooty-pale, subtomentose. Stipe excentric, long, taper- 

 ing downward, rooting, black below. Pores somewhat decurrent, 

 very large, obtuse, equal, white. 



On the ground near old stumps, in autumn ; common. I find 

 this plant, as Berkeley says, of various sizes, from the small plant, 

 which Schweinitz describes, to five inches or more across, with the 

 stipe six inches or more in length ■ the long, tapering stipe penetrates 

 the earth to a depth of several inches, the tip being always attached 

 to some portion of an old root. The pileus is brown or blackish 

 and more or less tomentose ; the upper part of the stipe is colored 

 as the pileus, whitish at the top ; the lower rooting portion is black 

 and more or less crooked or deformed. The pores are very large, 

 averaging. 65 mm. in diameter. P. Morgani, Frost, appears to me 

 to be this same plant 



II. P. picipes, Fr. Pileus fleshy, coriaceous, then rigid, tough, 

 even, glabrous, depressed on the disc or behind. Stipe excentric 

 and lateral, equal, firm, at first velvety, then naked and punctate, 

 black. Pores decurrent, round, small, white, then reddish yellow. 



In woods on old logs ; common. Very variable in size ; pileus 

 very thin but tough, three to six inches or more across, often lobed, 

 the color varying from pale to chestnut, especially on the depressed 

 disk. 



12. P. varius, Fr. Pileus fleshy-tough, thin, becoming woody, 

 glabrous, subvirgate, deformed, depressed on the disc or behind. 

 Stipe excentric and lateral, even, glabrous, gradually cinereous- 

 blackish downward. Pores decurrent, minute, short, round, un- 

 equal, whitish, then cinnamon. 



On trunks and branches in woods. The specimens referred to 

 tin's species are few in number and very variable in appearance ; 

 they probably include the P. Ussas, of Berkeley, together with 

 larger forms. 



