. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. Fig. 162.—Cross-section of an un- known gall on Quercus Wislizeni. Ep, pidermis; Mi, outer mechanic mantle; Si, starch-filled outer nutritive layer; Ml, inner mechanic mantle. (After Kiister, p. 252.) Fig. 163.—Insect gall on scrub oak, Quercus njina, due to gall insect, Ampki- bolips ilicifolia with interior of gall. Pine Barrens near Chatsworth, N. J., May 27, 1916. other cases, the food materials are stored outside the mechanic mantel, and they become available only by the larvae bre
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. Fig. 162.—Cross-section of an un- known gall on Quercus Wislizeni. Ep, pidermis; Mi, outer mechanic mantle; Si, starch-filled outer nutritive layer; Ml, inner mechanic mantle. (After Kiister, p. 252.) Fig. 163.—Insect gall on scrub oak, Quercus njina, due to gall insect, Ampki- bolips ilicifolia with interior of gall. Pine Barrens near Chatsworth, N. J., May 27, 1916. other cases, the food materials are stored outside the mechanic mantel, and they become available only by the larvae breaking through the stereid layer. The cells of the nutritive parenchyma are usually iso- diametric, elongated and sac-like forms, or as delicate cell threads. In the highly organized galls of the Cynipidae, the cells of the innermost layers on which the larvae feed contain a cloudy dense cytoplasm in which small fat globules are seen and this layer may be termed appro- priately the protein layer. A starch layer lies outside of the protein layer. Here the cells contain starch. Besides the nutritive bodies. 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 Harshberger, John W. (John William), 1869-1929. Philadelphia : P. Blakiston's Son & Co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1917
