. The plant cell, its modifications and vital processes; a manual for students. Plant physiology; Plant anatomy; Plant cells and tissues. Fig. 12.—A Stoma from the Leaf of Smilax, seen in surface view. Tlif- two crescentic guard-cells possess cytoplasmic contents and Fig. 13.^—A Stoma from the Leaf of Iris, in surface view (from a, photomicrograph). The primary cells may divide more than once, the last division of all resulting in the formation of guard-cells; the first-formed cells are then termed " ; Subsidiary cells are well seen in the leaf of Sedum (see


. The plant cell, its modifications and vital processes; a manual for students. Plant physiology; Plant anatomy; Plant cells and tissues. Fig. 12.—A Stoma from the Leaf of Smilax, seen in surface view. Tlif- two crescentic guard-cells possess cytoplasmic contents and Fig. 13.^—A Stoma from the Leaf of Iris, in surface view (from a, photomicrograph). The primary cells may divide more than once, the last division of all resulting in the formation of guard-cells; the first-formed cells are then termed " ; Subsidiary cells are well seen in the leaf of Sedum (see Figs. 12 to 14). In surface view guard-cells are usually crescentic in shape. A section across a stoma will show the following features:— i. An outer passage, the "vestibule," bounded, as a rule, by epidermal cells, or at times by subsidiary cells. The guard-cells lie at the inner end of the vestibule, and are very close together, leaving only a very narrow- entrance into. 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 Haig, Harold Axel. London, C. Griffin and Company, Ltd.


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplantanatomy, bookyea