PLANTS OF IOWA 65 



797. B. flavidus, Fries. 



In grass. A beautiful golden yellow species marked 

 with vermillion. 



798. B. ornatipes, Peck. 

 A large species. 



STROBILOMYCETES, Berk. 



799. S. strobilaceus, Berk. ' 

 Common in woods. 



POLYPORACE.E FAMILY. 



POLYPORUS, Micheli. 



800. P. resinosus, (Schrader). Fries. 



A common species, found everywhere on fallen trunks 

 of Tilia americana, especially in moist shades. 



801. P. pubescens, (Schumacher), Fries. 

 Rare. On dead birch. 



802. P. obtusus, Berkeley. 



Habitat oak trees, especially standing trunks of young 

 burr-oaks that have been killed by fire. 



803. P. galactinus, Berkeley. 



On rotting logs, usually near the ground; not common, 



804. P. diclirous, Fries. 



805. P. adustus, (Willdenow) Fries. 



Very common, especially on fallen stems of species of 

 Populus. 



806. P. fumosus, (Persoon) Fries. 



Much like P. diclirous in color and general shape, but 

 thick, corky, pallid, showing sooty or smoky tints 

 chiefly where bruised or rubbed. 



807. P. frgrans, Peck. 



Very near the preceding, but distinguished by its larger 

 and especially unequal denticulate pores. Rare. 



808. P. gilvus, Schweinitz. 



Very common, chiefly on oak. 



809. P. rutilans, (Persoon) Fries. 

 Not common; on oak limbs. 



810. P. dryophilus, Berkeley. 



A large and rather handsome species, on species of oak - f 

 not common. 



