Ohio Mycological Bulletin No. lo. 



•39 



Fig « Polvp'-o-rus bct-u-li'nus. [More recently written Pip-to-po'-rus sub-e- 

 To'-sus ] 15irch P'ol'-vpore. Leathery or rather woody. Photograph from a herbarium 

 specimen collected by C. F. liaker in Wisconsin in 1897. The fungus measured 

 six and a fourth by nine inches. The cut has been reduced to about five ninths 

 of these measurements, and therefore the pores on the lower surface are not 

 distinct; even the peculiar conspicuous elongated hair-like scales attached to the 

 pore-surface are not clearly represented in the half-tone. 



