Murrill: Polypores of Temperate North America 13 



Coltricia tomentosa (Fries) Murrill 

 Regarding Polyporus dualis, Peck published the following: 



" In Sylloge, Vol. vi, p. 208, this fungus has been united with P. circinatus, 

 to which it is similar in color and texture, but from which it differs in its 

 shape and habitat. It is dimidiate and stemless, or with only a lateral short 

 stem-like base, and grows from the sides of stumps or dead trunks of spruce 

 or pine trees. The dried specimens are also a little more highly colored than 

 those of P. circinatus. It does not seem right to disregard entirely such 

 differences, and I am unwilling to follow the plan of Sylloge in considering 

 this plant identical with P. circinatus. It is at least worthy of varietal dis- 

 tinction, and may stand under the name P. circinatus Fr. var. dualis Pk." 



Coltricia obesa (Ellis & Ev.) Murrill 



Change to Coltricia Montagnei (Fries) Murrill {Polyporus 

 Montagnei Fries; Mont. Ann. Sci. Nat. II. 5: 341. 1836). 



Cryptoporus volvatus (Peck) Shear 



In my " Northern Polypores " and " Western Polypores," Hub- 

 bard instead of Shear was incorrectly cited as the authority both 

 for the generic name and the specific combination. 



Fomes roseus (Alb. & Schw.) Cooke 



It is claimed by some that the plant called Polyporus carneus 

 in this country is distinct, being thin and annual, while the true 

 Fomes roseus is ungulate. Compare variations occurring in 

 Porodaedalea Pint (Thore) Murrill. 



Pyropolyporus Murrill 



Species of this genus having ferruginous or fulvous spores 

 were transferred to the new genus, Fulvifomes Murrill, in 

 " Northern Polypores," " Southern Polypores," " Western Poly- 

 pores," and " Tropical Polypores." 



Pyropolyporus Bakeri Murrill 



Specimens of Fomes Hartigii from Bresadola appear very 

 similar on first sight, but are probably distinct. Compare also 

 Fomes robustus. 



