180 THE POLYPORACEAE OF WISCONSIN. 



PLATE XII. 

 Polyporus. 



Fig. 40. Polyporus sulphureus (Bull.) Fr. Much reduced. On oak, Madison, 



August. 



Fig. 41. Polyporus anax Berk. Much reduced. Madison, August. 

 Fig. 42. Polyporus ovinus (Fr.) Berk & Curt. On sandy ground among 



scrub pine. The Dells, September. 

 Fig. 43. Polyporus frondosus Fr. Crandon, August. 



