CONTEXT AND PORES WHITE OR PALE. 



beech, in the United States, a plant that we believe on comparison to 

 be the same species (Fig. 649). We make the spores smaller, 2 x 3^, 

 and the pores were larger, but the dried plants can hardly be told 

 apart. Our American plant was also more alutaceous when fresh. 



Fig. 649. 



Polyporus epileucus. 



Fig. 650. 



Polyporus nivosus. 



POLYPORUS NIVOSUS (Fig. 650). Plant white, with smooth, 

 white surface, no crust. Context hard, firm, white. Pores minute, 

 white. Spores (?) globose, smooth, hyaline, 6-7 mic. 

 [8* A small plant known to us only from Brazil. It is 2-3 cm. in 

 diameter, 1-2 cm. thick. The entire plant dries white. We have a 

 specimen from Rev. Thiessen, Brazil, which we have compared with the 

 type at Kew and found the same. We question the recent determina- 

 tion from West Indies. There is no indication of any "punky" con- 

 text in Polyporus nivosus, and the two collections at New York from 

 Cuba are misref erred here. 



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