12 BULLETIN 1366, U. S. DEPARTMENT OF AGRICULTURE 



ABIES — Continued. 



A. concolor, white fir — Continued. 



Phacidium infestans Karst., needle blight. Idaho. 



Polyporus schweinitzii Fr., red-brown butt-rot. General with host. 



Pucciniastrum pustulatum (Pers.) Diet., rust. Colo. 



Razoumofskya douglasii abietina (Engelm.) Piper, mistletoe. Ariz, to Oreg. 



R. occidentalis abietina (Engelm.) Coville, mistletoe witches'-broom. Utah, 



Oreg., Calif. 

 Trametes pini (Brot.) Fr. (Fomes pini (Thore) Karst.). honeycomb rot. 



Calif. 

 A. grandis, great silver fir. 



Botrytis sp., seedling twig-blight. Idaho. 



Calyptospora columnaris (Alb. and Schw.) Kuehn, leaf blister rust. Mont. 



Dimerosporium sp., sooty mold. Wash. 



Echinodontium tinctorium Ell. and Ev., brown stringy rot. Mont., Idaho, 



Pacific coast. 

 Fomes officinalis Fr., reddish brown-rot. Idaho. 

 F. pinicola Fr., brown crumbly rot. Idaho, Wash. 

 Herpotrichia nigra Hartig, matting. Idaho. 

 Hydnum sp., hollow pocket rot. Idaho, Wash. 

 Lophodermium abietis Rostr., needle cast. Pacific Northwest. 

 L. nervisequium (DC.) Rehm, needle cast. Idaho. 

 Melampsora americana Arth., rust. Idaho, Wash., Oreg. 

 M. arctica Rostr., rust. Idaho, Mont. 

 Melampsorella elatina (Alb. and Schw.) Arth., rust witches '-broom. Pacific 



Northwest. 

 Peridermium rugosum Jack. ; rust. Wash., Oreg. 

 Phacidium infestans Karst., needle blight. Idaho. 

 Polyporus dryadcus (Pers.) Fr., heart-rot. Pacific Northwest. 

 P. schweinitzii Fr., red-brown butt-rot. General with host. 

 P. sulphureus (Bull.) Fr., brown-checked wood-rot. 

 Pucciniastrum pustulatum (Pers.) Diet., leaf blister rust. Idaho, Mont., 



Oreg., Wash. 

 Razoumofskya douglasii (Engelm.) Piper, mistletoe. Pacific coast, Idaho. 

 R. occidentalis abietina (Engelm.) Coville, mistletoe witches'-broom. Idaho, 



Oreg., Calif. 

 Rhizina infiata (Schaeff.) Sacc, seedling blight. Mont. 

 Uredinopsis copelandii Syd., leaf blister rust. Pacific Northwest. 

 U. pteridis Diet, and Holw., rust. Mont., Idaho, Wash., Oreg., Calif. 

 A. lasiocarpa, alpine fir. 



Calyptospora columnaris (Alb. and Schw.) Kuehn, leaf blister rust. Idaho, 



Mont., Wyo., Colo., Oreg. 

 Echinodontium tinctorium Ell. and Ev., brown stringy rot. Mont. 

 Fomes pinicola Fr., brown crumbly rot. General within range of host. 

 Herpotrichia nigra Hartig, matting. Colo., Wyo., Idaho. 

 Melampsora americana Arth., rust. Wash. 

 M. arctica Rostr., rust. Idaho, Mont. 

 Melampsorella elatina (Alb. and Schw.) Arth., rust witches'-broom. Mont., 



Wyo., Utah. 

 Peridermium ornamentale Arth., rust. Oreg. 

 Phacidium infestans Karst., needle blight. Idaho. 

 Polyporus schweinitzii Fr., red-brown butt-rot. 

 Pucciniastrum pustulatum (Pers.) Diet., leaf blister rust. Mont., Oreg., 



Colo., Idaho, Alaska. 

 Razoumofskya douglasii (Engelm.) Piper, mistletoe. Colo., Mont. 

 R. laricis Piper, mistletoe witches'-broom. Mont. 

 Trametes pini (Brot.) Fr. (Fomes pini (Thore) Karst.), honeycomb rot. 



Common with host. 

 Uredinopsis copelandii Syd., leaf blister rust. Colo. 

 A. magnifica, red fir. 



Calyptospora columnaris (Alb. and Schw.) Kuehn, leaf blister rust. Calif., 



Oreg. 

 Echinodontium tinctorium Ell. and Ev., brown stringy rot. Calif. 

 Fomes officinalis Fr., reddish brown-rot. Calif. 

 F. pinicola Fr., brown crumbly rot. General within range of host. 



