. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. 52 DISEASES OF CROPS. 22) is examined beneath the microscope,^ the mycelium of the fungus will be seen ramifying among the cells of the leaf. "Wherever the mycelium comes in contact with the cells of the host-plant, they become discoloured. This is. Fig. 22.^PoTATO FcNans {Peronospora infestans). A to B. Transverse section of potato leaf, showing mycelium (spawn) of fungup. A. Lower surface with two stomata (C) and conidiophores passing tiirough them. D. Conidium (spore).
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. 52 DISEASES OF CROPS. 22) is examined beneath the microscope,^ the mycelium of the fungus will be seen ramifying among the cells of the leaf. "Wherever the mycelium comes in contact with the cells of the host-plant, they become discoloured. This is. Fig. 22.^PoTATO FcNans {Peronospora infestans). A to B. Transverse section of potato leaf, showing mycelium (spawn) of fungup. A. Lower surface with two stomata (C) and conidiophores passing tiirough them. D. Conidium (spore). E. Zoospore. F. Odgonium and antheridinm. 6. Pallisade parenchyma cells of leaf. H. Spongy parenchyma. (X 100 diam.) due to the putrefactive changes caused by the presence of this fungoid growth. The mycelium gives rise to aerial hyphee (conidiophores) which bear conidia or spores (Fig. * In our opinion, the best "objectives" for this and similar pur- poses are those made by Zeiss of 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 Griffiths, A. B. (Arthur Bower), 1859-. London : G. Bell
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Keywords: ., bookauthorgriffith, bookcentury1800, bookdecade1890, bookyear1890
