. The structure and development of crown gall : a plant cancer . -© ft Daisy XII. Cross section of central leaf-trace of petiole B, further enlarged for comparison with Plate III (p. 38). 255, Bureau of Plant Industry, U. S. Dept. of Agriculture —r—? ^~—- Plate Daisy XII. Longitudinal section of leaf-trace shown in Plate XLVIII, all abnormal except sp and scl (p. 38). Bui. 255, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate L.


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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1912