Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 Fig. 45.—Protomyces macrosporiis on leaf-stalk of A, Mycelium and sporangium in- the tissue under the epidermis. B, Sporangia in stages of development, (v. Tubeuf del.) latter is a secondary process and consists (see Fig. 9) in the formation of exceedingly delicate membranes inside the original Fig. 46.—Protomyces viaci'Oiporus. Section of petiole of with tw

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Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 Fig. 45.—Protomyces macrosporiis on leaf-stalk of A, Mycelium and sporangium in- the tissue under the epidermis. B, Sporangia in stages of development, (v. Tubeuf del.) latter is a secondary process and consists (see Fig. 9) in the formation of exceedingly delicate membranes inside the original Fig. 46.—Protomyces viaci'Oiporus. Section of petiole of with two swellings containing spores. Secondary cell-walls have been formed, and a coUenchyma region lies between the two swellings, (v. Tubeuf del.) cells of the parenchyma, so that they become divided into younger cells rich in protoplasm and each showing a distinct

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