74 BULLETIN 1366, U. S. DEPARTMENT OF AGRICULTURE 



PICEA— Continued. 



P. mariana, black spruce, and P. rubra, red spruce — Continued. 

 P. schweinitzii Fr., red-brown butt-rot. Minn. 

 Razoumofskya pusilla (Pk.) O. Kuntze, witches'-broom. New England, 



N. Y., Mich. 

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



Me., Minn. 

 P. sitchensis, Sitka spruce. 



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



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



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



host. 

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

 Melampsoropsis ledicola (Pk.) Arth., leaf blister rust. Wash., Alaska. 

 Polyporus berkeleyi Fr., string and ray rot. Calif. 

 P. schweinitzii Fr., red-brown butt-rot. Oreg. 

 Pythium debaryanum Hesse, damping-off. 

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



Oreg. 



PINTJS. 



P. albicaulis, whitebark pine. 



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



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



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



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

 Mont. 



R. laricis Piper, mistletoe. • Mont. 

 P. attenuata, knobcone pine. 



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



C. coleosporioides (Diet, and Holw.) Arth., rust. Calif. 



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



Razoumofskya americana (Nutt.) O. Kuntze, mistletoe. Oreg. 



R. campylopoda (Engelm.) Piper, mistletoe. Pacific coast. 

 P. banksiana, jack pine. 



Coleosporium helianthi (Schw.) Arth., rust. Mich. 



Corticium vagum Berk, and Curt., damping-off. Nebr. 



Cronartium cerebrum (Pk.) Hedge, and Long, oak-rust. Conn., Mich., Minn. 



C. comptoniae Arth., rust. Conn., Wis., Minn. 



C. pyriforme (Pk.) Hedge, and Long, rust. Minn. 



Lophodermium amplum Davis, needle cast. Wis. 



L. pinastri (Schrad.) Chev., needle cast. Wis., Minn. 



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



Pythium debaryanum Hesse, damping-off. 



Razoumofskya americana Nutt., mistletoe. 

 P. caribaea, slash pine. 



Coleosporium apocynaceum Cke., rust. Fla. 



C. carneum (Bosc) Jack., rust. Ga., Fla. 



C. delicatulum (Arth. and Kern) Hedge, and Long, rust. Fla., La. 



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



C. ipomoeae (Schw.) Burr., rust. Fla. 



Cronartium strobilinum (Arth.) Hedge, and G. Hahn, rust. Fla. 

 P. contorta, shore pine, and P. murrayana, lodgepole pine. • 



Cenangium piniphilum Weir, canker. Idaho. 



Coleosporium solidaginis (Schw.) Thuem., rust. Colo., Mont., Idaho, 

 Oreg., Wash. 



Cronartium coleosporioides (Diet, and Holw.) Arth., rust. Colo., S. Dak., 

 Mont., Idaho, Wyo., Wash., Calif. 



C. cerebrum (Pk.) Hedge, and Long, oak-rust. Wyo., Utah, Idaho. 



C. comptoniae Arth., rust. Mich. 



C . filamentosum (Pk.) Hedge, pine-gall rust. Pacific Northwest. 



C. harknessii (Moore) E. P. Meinecke, western pine-gall rust. Pacific coast; 

 Idaho, Mont. 



C. pyriforme (Pk.) Hedge, and Long, rust. Mich., Colo., Mont., Wyo., 

 Idaho. 



