. Botany of the living plant. Botany. FUNGI. INTRODUCTORY 407 The effect of the parasitic invasion may be llic death of the host where vital parts are destroyed, as in attacks by Pythium, or Armillana mellea (Fig. 340). But in many cases the attack is tolerated by the host, with only partial injury. It is often the leaf, or only certain tissues of the leaf, which are attacked, the result being a loss of efficiency by the host, while the parasite gains access to the sources of supply. These may indeed be stimulated to greater action, with the effect of swelling, and extra divisions of their cel


. Botany of the living plant. Botany. FUNGI. INTRODUCTORY 407 The effect of the parasitic invasion may be llic death of the host where vital parts are destroyed, as in attacks by Pythium, or Armillana mellea (Fig. 340). But in many cases the attack is tolerated by the host, with only partial injury. It is often the leaf, or only certain tissues of the leaf, which are attacked, the result being a loss of efficiency by the host, while the parasite gains access to the sources of supply. These may indeed be stimulated to greater action, with the effect of swelling, and extra divisions of their cells. The result may be various malformations, such as are seen in the familiar leaf-curl of Peaches, or the swollen patches of Cluster-Cups (Fig. 383, p. 44;). ]fH M. 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 Bower, F. O. (Frederick Orpen), 1855-1948. London, Macmillan


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919