LIGHT-COLORED RESUPINATE 

 POLYPORES— III 



William A. Murrill 



The last number of this series, which appeared in Mycologia 

 for November, 1920, dealt chiefly with white species. In the 

 present article, I shall mainly discuss species that are rose-colored, 

 lilac, red, or purple ; or that show tints of these colors. 



48. Poria eupora (P. Karst.) Cooke, Grevillea 14: 1 10. 1886 



Polyporus euporus P. Karst. Not. Sallsk. Faun. Fl. Fenn. 9 : 

 360. 1868. 



Polyporus attenuatus Peck, Bull. Buffalo Soc. Nat. Sci. 1 : 61. 



1873 ; Ann. Rep. N. Y. State Mus. 26 : 70. 1874. 

 Polyporus Blyttii Fries, Hymen. Eur. 571. 1874. 

 Poria Blyttii P. Karst. Bidr. Finl. Nat. Folk 37 : 83. 1882. 

 Poria attenuata Cooke, Grevillea 14: no. 1886. 



Originally described as follows from specimens collected on 

 dead willow wood in Finland by Karsten, who notes that it is not 

 rare : 



" Effusus, adhaerens vel adnatus, tenuis, submicans, ambitu 

 byssaceo-contextu albo ; pori minuti, subangulati, demum saepius 

 laceri, curti, testaceo-lutei.' , 



The type of P. Blyttii is at Christiania. At Upsala I found two 

 specimens under this name, one white and the other rosy-isabel- 

 line, the latter being the correct one. According to Bresadola, 

 Polyporus collabens Fries and P. emollitus Fries are forms of P. 

 Blyttii Fries, and his statement appears to be supported by orig- 

 inal specimens in his herbarium. Specimens from Karsten show 

 that P. euporus is not distinct. It may be that the name here 

 used will have to give way to P. nitida Pers. See discussion 

 under that species. 



The most complete description of this fungus is that recently 



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