. Bulletin of the Department of Agriculture. Agriculture; Agriculture. WHITE-PINE RUST. 5 found much earliei-, and more of it would have been found since then. Fischer (40) found the disease in 1915 spreading into western and northern Switzerland from without. It is generally supposed that Pinus cemhra (26, 70, 93, 97, 98, 123) is the original pine host of this fungus. Figure 1 shows the distri- bution of P. cemhra and its variety pumila in Europe and Asia. Oronartium ribicola is reported from Asia as follows: In 1879, from Â¥%J ft-;:^ex«^ f ...^r "^ ^ â¢â¢â¢7 rl^i^^l -
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. WHITE-PINE RUST. 5 found much earliei-, and more of it would have been found since then. Fischer (40) found the disease in 1915 spreading into western and northern Switzerland from without. It is generally supposed that Pinus cemhra (26, 70, 93, 97, 98, 123) is the original pine host of this fungus. Figure 1 shows the distri- bution of P. cemhra and its variety pumila in Europe and Asia. Oronartium ribicola is reported from Asia as follows: In 1879, from Â¥%J ft-;:^ex«^ f ...^r "^ ^ â¢â¢â¢7 rl^i^^l -. -^:-\ '/ â '^^ ^^W^--^|. i \r x;^ -^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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