LIST OF DISEASES OF ECONOMIC PLANTS 75 



PINUS— Continued. 



P. contorta, shore pine, and P. murrayana, lodgepole pine — Continued. 

 Fomes pinicola Fr., brown crumbly rot. Mont., Idaho. 

 F. roseus (Alb. and Schw.) Fr., brown pocket rot. General in range of host. 

 Hypoderma deformans Weir, needle cast, witches'-broom. Oreg., Calif. 

 H. lineare (Pk.) Thuem., needle cast. Colo. 



Hypodermella montivaga (Petr.) Dearn., needle cast. Idaho, Oreg. 

 Lophodermium pinastri (Schrad.) Chev., needle cast. Colo., Alaska. 

 Neopeckia coulteri (Pk.) Sacc, brown felt-blight. Colo., Utah, Idaho, 



Wash., Oreg. 

 Peridermium betheli Hedge, and Long, rust. Colo. 

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

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

 Razoumofskya americana Nutt., mistletoe. Rocky Mt. region; Pacific 



Northwest; eastern Calif. 

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

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



Mont., Idaho. 

 P. echinata, shortleaf pine. 



Coleosporium carneum (Bosc) Jack., rust. Southeastern States. 



C. delicatulum (Arth. and Kern) Hedge, and Long, rust. Pa., Md., S. C, Ga. 



C. elephantopodis (Schw.) Thuem., rust. Fla. 



C. helianthi (Schw.) Arth., rust. Ga. 



C. inconspicuum (Long) Hedge, and Long, rust. Md., N. C, Ga. 



C. ipomoeae (Schw.) Burr., rust. Pa., Va., N. C, S. C, Tenn., Ga., Ala., 



Ark., Tex. 

 C. solidaginis (Schw.) Thuem., rust. Del., Miss. 

 C. terebinthinaceae (Schw.) Arth., rust. Southeastern States. 

 Cronartium cerebrum (Pk.) Hedge, and Long, oak-rust. Ark. 

 C. comptoniae Arth., sweet-fern rust. N. C. 

 . C. strobilinum Arth., rust. Miss. 

 Fomes pinicola Fr., brown crumbly rot. General in host range. 

 Lophodermium pinastri (Schrad.) Chev., needle cast. Ala. 

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



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

 P. edulis, nut pine. 



Coleosporium ribicola (Cke. and Ell.) Arth., rust. Colo., N. Mex. 

 Cronartium occidentale Hedge, Bethel, and Hunt, pinon blister rust. Colo., 



N. Mex., Utah. 

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

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



Razoumofskya divaricata (Engelm.) Coville, mistletoe. Colo., Utah, Calif 

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

 P. jeffreyi, Jeffrey pine. 



Cronartium comptoniae Arth., sweet-fern rust. 

 C. filamentosum (Pk.) Hedge, and Long, rust. Oreg. 

 C. harknessii (Moore) E. P. Meinecke, rust. Nev., Calif. 

 Fomes pinicola Fr., brown crumbly rot. General with host. 

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

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

 Razoumofskya americana Nutt., mistletoe. Calif. 

 R. campylopoda (Engelm.) Piper, mistletoe. Calif. 

 P. lamberiiana, sugar pine. 



Armillaria mellea (Vahl) Quel., root-rot. Calif. 



Cronartium ribicola Fisch., blister rust. N. Y. 



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



F. pinicola Fr., brown crumbly rot. Calif. 



Lophodermium pinastri (Schrad.) Chev., needle cast. Oreg. 



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



Razoumofskya cyanocarpa (A. Nelson) P. A. Rydberg, mistletoe. Oreg., 



Calif. 

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



Calif. 



