NATURAL HISTORY SURVEY [23 



encircling twigs. Pores 1 to 3 mm. long, rusty-cinnamon, some- 

 times oblique from position. The circumference of the growing- 

 plant varies in color from ochraceous to ferruginous. It belorj 

 to the genus Mucronoporus, of Ellis and Everhart. 



Poria contigua Pers. 



Effused, firm, smooth, somewhat marginate, margin at firsl 

 villous, cinnamon when young. 



Pores rather large, equal, obtuse, entire. 



On dead sticks of Quercus, Glen Ellyn. October. The color 

 becomes a dull, wood-brown with age. 



TRAMETES. 



Tubes subcylindrical, not stratose; plants corky, sessile; trama 

 descending between the pores. 



Pores whitish or wood-colored T. rigida. 



Pores ferruginous-fuscous T. Peckii. 



Trametes rigida Berk, and Mont. 



Pileus corky, undulate, by far the greater part resupinatr; 

 margin short, acute, subzonate, tawny-brown. 



Pores medium size, round, equal, obtuse, whitish. 



On the underside of a dead branch. Woods. Riverside. 

 October, 1903. Determined by Prof. Harper. 

 Trametes Peckii Kalchb. 



Pileus suberose, dimidiate, sessile, subdecurrent, hirsute, 

 azonate, ferruginous-fuscous, at length faded, the margin acute. 



Pores rather large, rotund-angulate, concolorous with the 

 pileus, becoming fuscous with age; context wood-colored. 



On trunks and stumps of Populus and Salix. Winfield and 

 Wheaton. A resupinate form is occasionally found. 



In Bull. Torr. Club, 32 : 356, Mr. Murrill says that this is a 

 synonym of Trametes stuppeus Berk. 



DAEDALEA. 



Pileus generally dimidiate, corky, leathery, persistent. Sub- 

 stance descending unchanged into the trama. Pores elongate, 

 labyrinthiform. 



Pileus cinereous with unicolorous zones D. unicolor. 



Pileus brown with darker zones D. confragosa. 



Daedalea unicolor Bull. (Plate XVII, Fig. 2.) 



Pileus cinereous, with zones of the same color, coriaceous, 



villose-strigose. 



Lamellae labyrinthiform, intricate, at length torn into teeth, 



whitish-cinereous or fuscous. 



On logs, stumps, etc. Common. Pilei 5 to 7 cm. broad, 



projecting 2 to 3 cm., often imbricated and laterally concrescent. 



The young plants are of a yellowish-brown color, becoming darker 



with age, finally blackish-brown, and in damp places often more 



or less overgrown with green algae. 



