Elementary botany (1898) Elementary botany elementarybotany00atki Year: 1898 CHAPTER XLVI. FURTHER STUDIES ON NUTRITION. 593. In our former studies on nutrition we found that such plants as the corn, pea, bean, etc., obtain their liquid food through the medium of root hairs. The liverworts and mosses obtain theirs largely through similar outgrowths, the rhizoids, while a majority of the algae, being bathed on all sides by water, absorb liquid food through any part of the surface. We will find it instructive to study some of the different ways in which diverse plants obtain their liquid food.
Elementary botany (1898) Elementary botany elementarybotany00atki Year: 1898 CHAPTER XLVI. FURTHER STUDIES ON NUTRITION. 593. In our former studies on nutrition we found that such plants as the corn, pea, bean, etc., obtain their liquid food through the medium of root hairs. The liverworts and mosses obtain theirs largely through similar outgrowths, the rhizoids, while a majority of the algae, being bathed on all sides by water, absorb liquid food through any part of the surface. We will find it instructive to study some of the different ways in which diverse plants obtain their liquid food. 594. Nutrition in lemna.—A water plant is illustrated in fig. 412. This is the common duckweed, Lemna trisulca. It is very peculiar in form and in Fronds ot the duckweed (Lemna trisulca its mode of growth. Each one of the lateral leaf-like expansions extends out- wards by the elongation of the basal part, which becomes long and slender. Next, two new lateral expansions are formed on these by prolification from near
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