. Journal of Agricultural Research. Journal of Agricultural Research Washington, D. C. Bacterial Leafspot of Clovers Plate 6. Journal of Agricultural Research Washington, D. C. ?r? 7 PLATE 6Agar slant ctUtures of the clover organism. Potato agar ( per cent agar) streaks of Bacterium trifoliorum incubated for four days at 26° C. A.—Wisconsin isolation 1920-III illustrates well the characteristics of this morespreading strain. As in the plate colonies (see B, PI. 5) the radial folds are not soclosely packed, the edges of the colony less raised than in isolation 1Q16-II shown in B. B.—Wisconsi
. Journal of Agricultural Research. Journal of Agricultural Research Washington, D. C. Bacterial Leafspot of Clovers Plate 6. Journal of Agricultural Research Washington, D. C. ?r? 7 PLATE 6Agar slant ctUtures of the clover organism. Potato agar ( per cent agar) streaks of Bacterium trifoliorum incubated for four days at 26° C. A.—Wisconsin isolation 1920-III illustrates well the characteristics of this morespreading strain. As in the plate colonies (see B, PI. 5) the radial folds are not soclosely packed, the edges of the colony less raised than in isolation 1Q16-II shown in B. B.—Wisconsin isolation 1916-II. (Compare also with colonies in PI. 5, A.) A NEW TYPE OF ORANGE-RUST ON BLACKBERRY* By B. O. DODGB Pathologist, Fruit-Disease Investigations, Bureau of Plant Industry, United States Department of Agriculture The writer in discussing the distribution of the orange-rusts of Rubusreferred to certain blackberries obtained at Forestville, Md., in of the plants were infected with the typical short-cycled form, oneplant with the long-cycled Gymnoconia, and two plants with a formwhose spores
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