The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 Ji^^, / ilPJ 439 bers of such cells. No such cxaet regularity in size and shape is ever actually found; but a nearly truthful magnified view of a small portion of i slice of the flower-stalk of a Calla Lily (Fig. 440) shows a fairly corres- 440 ponding structure ; except that, owing to the great air-spaces of the interior, the fabric maybe likened rather to a stack of chimneys than to a solid fabric. In young and partly transparent parts one may discern the cel- lular structure
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 Ji^^, / ilPJ 439 bers of such cells. No such cxaet regularity in size and shape is ever actually found; but a nearly truthful magnified view of a small portion of i slice of the flower-stalk of a Calla Lily (Fig. 440) shows a fairly corres- 440 ponding structure ; except that, owing to the great air-spaces of the interior, the fabric maybe likened rather to a stack of chimneys than to a solid fabric. In young and partly transparent parts one may discern the cel- lular structure by looking down directly on the surface, as of a form- ing root. (Fig. 82, 441. 442). 402. The substance of which cell-walls are mainly composed is called Cellulose. It is essentially the same in the stem of a delicate leaf or petal and in the wood of an Oak, except that in the latter the walls arc Pio. 438. Diagram of a vegetable cell, such aa it would be it' when Bpherical it were equally pressed by similar Burrounding cells in h heap. Pio. 189. Meal construction of cellular tissue bo formed, in section. Pio. 140. Magnified vietr of s portion f s transverse slice of stem of Calla Lily. The great spaces arc tubular .iir-eh;umels up by the Cttlla.
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