134 POIvYPOREI. 



stem, short or none, arising from a long and thick caudex. 



Pores, large, irregular, angular, pale. 



On the ground, near superficial roots of trees. They grow to an im- 

 mense size, equal to the P. giganteus. Throughout the Valley. 



P. umbellatus. Fr. 



Pileoli, numerous, broad, fuliginous, rufous, entire, 

 umbilicate. 



Pores, minute, white. 



Stem, elongated, separate, united at the base, white. 

 Found on a rotten stump in woods near Cedar Creek woods. 



P. sulfur eus. Fr. 



Pileoli, broad, imbricated, undulated, nearl}^ smooth, 

 egg yellow, flesh cheesy. 



Pores, minute, often formed of inflexed masses. 

 Stem, often connate into a yellow unrecognizable mass. 

 Common on decayed willow branches. Spores white. 



Section 4. Apus. Without a stem. 



This section is divided into four groups, viz: 



1. Anodermei — without a separate cuticle on the pileus. 



2. Placodermei — pileus indurated, covered with a more or 

 less hard crust. 



3. Inodermei — pileus at first dry, covered with a thin, more 

 or less fibrous, cuticle. 



4. Resupinate — without a pileus. 



Group i. P. rutilans. Fr. Reddish Polyporus. 



Pileus, fleshy, tough, thin, soft, at first villose, then 

 smooth, not zoned, tawny cinnamon, growing pale, of the same 

 color within. 



