Murrill: Polypores of Temperate North America 15 



Ganoderma sessile Murrill 



The type of this species is large and entirely sessile, but a great 

 many forms have been collected since it was described that are 

 furnished with long stipes and seem to connect it up with Poly- 

 porus lucidus of Europe {Ganoderma pseudoboletus (Jacq.) 

 Murrill). According to some authors, Ganoderma subperforatum 

 Atk. is not distinct. The genus is a very difficult one and still 

 requires considerable field work before the limitations of the 

 species are accurately known. 



Daedalea Aesculi (Schw.) Murrill 

 Use the name Daedalea dmbigua Berk, for this species. 



Gloeophyllum hirsutum (SchaefT.) Murrill 



Overholts includes Trametes protracta Fries as an American 

 species, but says that some consider it only a poroid form of G. 

 hirsutum, which it much resembles. 



List of Additions 



Abramsianus. Pyropolyporus Abramsianus Murrill, Western 

 Polypores 26. 191 5. Collected several times in California. 



aduncus. Polyporus aduncus C. G. Lloyd, Letter No. 56 : 5 ; 

 Syn. Apus Pol. 354. 191 5. Type not seen. Belongs in 

 I no no tus. 



" Pileus dimidiate, i cm. thick, unicolorous brown. Surface with coarse, 

 brown, hispid hairs. Context brown. Pores small, round, brown. Setae few, 

 large, 8-10 X 60-75 A*> deeply colored, with peculiar, hooked points. Spores 

 hyaline, smooth, 4 X 5-6 not guttulate. Spores are a little larger than 

 Polyporus leporinus, but otherwise it is exactly the same, excepting the sur- 

 face, which is quite different. It is very rare, only known from one specimen 

 from E. K. Abbott, Monterey, California, and grew on the roots of a pine 

 tree. To the eye it resembles Polyporus cuticularis, but has no relation to it 

 otherwise." 



amarus. Fomes amarus (Hedgcock) Murrill, Western Polypores 

 25. 191 5. Found on incense cedar in Oregon and California. 



