. An introduction to vegetable physiology. Plant physiology. THE GENERAL STRUCTURE OP PLANTS 3 these masses of protoplasm, or cells, may be as small as two, or may be enormous, as is the case in such plants as the gigantic seaweeds of the tropics or the tall terrestrial trees which abound all over the surface of the globe, Whether the plant is simple or complex, we find the same fundamental arrangement of its parts : there is a certain number of protoplasts, in close relationship with each other, supported upon a framework or skeleton which shows a wonderful variety of arrangement, its details
. An introduction to vegetable physiology. Plant physiology. THE GENERAL STRUCTURE OP PLANTS 3 these masses of protoplasm, or cells, may be as small as two, or may be enormous, as is the case in such plants as the gigantic seaweeds of the tropics or the tall terrestrial trees which abound all over the surface of the globe, Whether the plant is simple or complex, we find the same fundamental arrangement of its parts : there is a certain number of protoplasts, in close relationship with each other, supported upon a framework or skeleton which shows a wonderful variety of arrangement, its details depending on the manner of life of the whole organism of which it forms so large a part. In such an organism each. â 'â â¢VtA""tt Fig. 3.âFigubes of diffeeent Baotebia. (After Cohn and Sachs. Very highly magnified.) 1, Sarcina; 2, Bacillus; 3, Spirillum; A, Spirillum with flagella; 5, 6, 7, Micrococcus. (Single, in strings, and in groups.) protoplast is usually found occupying a particular cavity which is formed by its cell-walls, and communicating with its neighbours on all sides by delicate prolongations of living substance which extend through the walls of con- tiguous chambers. Each chamber is often called a cell. In dealing with the physiology of the plant, it is the living substance which should first engage our attention, though the arrangements of the supporting structures or skeleton exhibit the greatest variety. We have seen that in the simplest forms of plants the living substance may exist without any cell-membrane, and may be freely motile, swimming in water by means of cilia, The absence of the. 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 Green, J. Reynolds (Joseph Reynolds), 1848-1914. Philadelphia, P. Blakiston
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