. Textbook of botany. Botany. Fig. 26. — A, the upper surface of a barberry- leaf, showing the diseased areas caused l^y the rust; the darlc dots represent the openings into the cavities in which spermatia are formed. B, the lower sur- face of a leaf, showing infected areas and the cluster 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 Allen, Charles E. (Charles Elmer), b. 1872; Gilbert, Edward Martinius, joint auth

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. Textbook of botany. Botany. Fig. 26. — A, the upper surface of a barberry- leaf, showing the diseased areas caused l^y the rust; the darlc dots represent the openings into the cavities in which spermatia are formed. B, the lower sur- face of a leaf, showing infected areas and the cluster 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 Allen, Charles E. (Charles Elmer), b. 1872; Gilbert, Edward Martinius, joint author. Boston, New York [etc. ] D. C. Heath & co

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1917