56 THE POLYPORACEAE OF WISCONSIN. 



Poria nitida (Pers.) Alb. & Schw. ( ?) 



Effused, subadnate, determinate, margin villous, yellow or almost 

 golden ; pores short, minute, round, equal, shining. ' ' On rotten wood. 

 Recognized by its bright yellow color. Crust-like, adnate." 



Probably not common. Specimens were found near Madison on oak 

 bark and decaying poplar trunks and at Crandon on maple. They 

 are 5 to 12 cm. long, 2 to 5 cm. broad ; the subiculum very thin ; it 

 seems to arise from a loose whitish mycelium which can often be found 

 in cavities underneath. The pores are small — perhaps 2 mm. in di- 

 ameter and vary in depth from 1 mm. to 6 mm. When deep they are 

 often oblique. The mouth of the pores is roundish; the dissepiments 

 obtuse when young but more acute in older specimens. The pores 

 often tear apart on drying. The margin is soft velvety in young spe- 

 cimens but almost disappears in older ones. 



The color is bright golden when fresh but becomes duller on drying ; 

 some fade almost to whiteness. Young layers of pores are sometimes 

 formed over the older ones so that the plants are somewhat stratose. 

 This condition occurs in one small specimen only. The specimens 

 were somewhat moist when fresh. 



Poria contigua (Pers.) Fries. 



Effused, about 8 cm. long, 2.5 cm. broad and about 1.5 cm. thick, firm, 

 giabrate, submarginate, cinnamon-brown when young, margin tomen- 

 tose. Pores large, equal, obtuse, entire. 



On decaying wood. 



Not common. Specimens were found on a charred pine stump at 

 Bangor, and a few small specimens were found on decaying sticks near 

 Crandon. 



The specimens are not large, measuring about 4 cm. by 2 cm. and 

 only 1 to 2 mm. in thickness. They are all dry and of a rich cinnamon- 

 brown when fresh, soft or felt-like, and separable. The pores are 

 large, shallow, quite equal but rather thin-walled. Our specimens do 

 not agree with the description in that they are thin, and the dissepi- 

 ments can hardly be called obtuse.. However, Henning and Patouillard 

 both determined the specimens submitted to them as belonging to this, 

 species. 



