. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. "=>^. li;.'. ir, FiH. 164. Fig. 104 (ii). mass. Ill the latter case, owing to mutii;il pressure they assume a somewhat angular form. These bodies 4- aro called cflls. Tliey are hollow, and their walls are usually thin and transparent. The entire fabric of every plant, without any exception whatever, is made up of cells ; but as we proceed in our investigation, we shall find that these
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. "=>^. li;.'. ir, FiH. 164. Fig. 104 (ii). mass. Ill the latter case, owing to mutii;il pressure they assume a somewhat angular form. These bodies 4- aro called cflls. Tliey are hollow, and their walls are usually thin and transparent. The entire fabric of every plant, without any exception whatever, is made up of cells ; but as we proceed in our investigation, we shall find that these cells are not all precisely alike, that as they become older they tend, as a rule, to tliieken their walls and undergo changes in form, which, tj a great extent, the texture of the plant's sub-jtance. 102. A fabric made up of cells is called a tissue. A collection of such cells as we found constituting our pulp, and as we should find constituting the mass of all the soft and new parts of plants, as well as of some hard parts, is called cellular tissue. The cells com- posing cellular tissue vary a great deal in size in different plants, being, as a rule, largest in aquatics, in which they may sometimes bo observed witli the naked eye. Ordinaiily, however, they are so minute that millions of them find room in a cubic inch of tissue. 163. When young, the walls of the cells are quite unbroken. Each cell is lined with an extremely thin membrane, and a portion of its cavity is occupied by a. 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto; Winnipeg : W. J. Gage
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