. A compendium of general botany. Plants. Fig. 94.—Resin-duct in the leaf of Pinus silvestris. (AfterHabeilandt.) Fig. 93.—External glands : A, from thepeti- «• Secreting cells; ..protective sheath 1 c -n , • J T> r A.\ \ c of the resin-duct. ole of Pelargonium zonale; B, from the leaf of Ribes nigrum. a. b. and c. Successive stages of development ; s, secretion ; v. receptacle for the secretion ; z, se- creting cells. (After Haberlandt.) nous" when the cells are torn. In the lysigenous form the secre- tion appears in the individual cells; subsequently the cell-walls are. Fig. 95.—Oil

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. A compendium of general botany. Plants. Fig. 94.—Resin-duct in the leaf of Pinus silvestris. (AfterHabeilandt.) Fig. 93.—External glands : A, from thepeti- «• Secreting cells; ..protective sheath 1 c -n , • J T> r A.\ \ c of the resin-duct. ole of Pelargonium zonale; B, from the leaf of Ribes nigrum. a. b. and c. Successive stages of development ; s, secretion ; v. receptacle for the secretion ; z, se- creting cells. (After Haberlandt.) nous" when the cells are torn. In the lysigenous form the secre- tion appears in the individual cells; subsequently the cell-walls are. Fig. 95.—Oil gland in the leaf of Hyper- icum perforatum. (After Haberlandt.) /i, Protective sheath ; s, secreting 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 Westermaier, Max; Schneider, Albert, 1863-1928. New York : Wiley

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1896