Elementary botany . IO PHYSIOLOGY. Young or growing parts of any one of various plants—the petiolesof young leaves, or young stems of growing plants—are suitablefor study. Tissue from the pith of corn (Zea mays) in young shoots just back of thegrowing point or quitenear the joints of older butgrowing corn stalks fur-Fig. 9> nishes excellent in niteiia. If we should place partof the stem of this plant under the microscope we should findit too opaque for observation of the interior of the cells. Thisis one striking difference which we note as we pass from the lowand simple pl
Elementary botany . IO PHYSIOLOGY. Young or growing parts of any one of various plants—the petiolesof young leaves, or young stems of growing plants—are suitablefor study. Tissue from the pith of corn (Zea mays) in young shoots just back of thegrowing point or quitenear the joints of older butgrowing corn stalks fur-Fig. 9> nishes excellent in niteiia. If we should place partof the stem of this plant under the microscope we should findit too opaque for observation of the interior of the cells. Thisis one striking difference which we note as we pass from the lowand simple plants to the higher and more complex ones ; notonly in general is there an increase of size, but also in generalan increase in thickness of the parts. The cells, instead of lyingend to end or side by side, are massed together so that the partsare quite opaque. In order to study the interior of the plantwe have selected it must be cut into such thin layers that thelight will pass readily through them. For this pur
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Keywords: ., bookauthoratk, bookcentury1900, bookdecade1900, booksubjectbotany
