. Minnesota plant diseases. Plant diseases. Fig. 45.—A Downy mildew with the aspect of a white rust. Under surface of burweed elder (Iva xanthiifolia) showing dense clusters of spore-like spore-cases. Original. ill adapted to the plant's new methods of life. Egg-spores are also formed throughout this group, though in a few cases, as in the common potato-bhght, they have not yet been ob- served. As in the damping-ofif fungus, the breeding act of many forms has actually been demonstrated. The egg spores are typically resting spores and, as in the damping-ofif fungus, serve to tide the plant over
. Minnesota plant diseases. Plant diseases. Fig. 45.—A Downy mildew with the aspect of a white rust. Under surface of burweed elder (Iva xanthiifolia) showing dense clusters of spore-like spore-cases. Original. ill adapted to the plant's new methods of life. Egg-spores are also formed throughout this group, though in a few cases, as in the common potato-bhght, they have not yet been ob- served. As in the damping-ofif fungus, the breeding act of many forms has actually been demonstrated. The egg spores are typically resting spores and, as in the damping-ofif fungus, serve to tide the plant over winter or other unfavorable sea- sons. They are usually found in abnorrnally swollen parts of the host. The plants of this group are all parasites and most of the known forms attack cultivated garden plants. They live. 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 Freeman, Edward Monroe, 1875-. Saint Paul, Minn.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplantdi, bookyear1905
