The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 SECTION 16.] CELL-CONTKNTS. 137 tuber. When the potato sprouts, the starch in the vicinity of developing buds or eyes is changed back, again, first into mucilaginous dextrine, then into sugar, dissolved in the sap,and in this form it is made to flow to the grow ing parts, where it is laid down into cellulose or cell-wall. 4C2 *â â > 421. Besides these cell-contents which arc in obvious and essential rela- tion to nutrition, there are others the use of which is problematical. Of
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 SECTION 16.] CELL-CONTKNTS. 137 tuber. When the potato sprouts, the starch in the vicinity of developing buds or eyes is changed back, again, first into mucilaginous dextrine, then into sugar, dissolved in the sap,and in this form it is made to flow to the grow ing parts, where it is laid down into cellulose or cell-wall. 4C2 *â â > 421. Besides these cell-contents which arc in obvious and essential rela- tion to nutrition, there are others the use of which is problematical. Of such the commonest arc â¢122. Crystals. These when slender or needle-shaped are called Ruapiiides. They are of inorganic matter, usually of oxalate or phosphate or sulphate of lime. Some, at least of the latter, may be direct crystalliza-
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