. Botany for agricultural students . Botany. 506 ECOLOGICAL CLASSIFICATION OF PLANTS plants of swamp societies are the Sagittarias, Bulrushes, Cat-tails, Rushes, Sedges, and Reedgrasses, which form fringes around ponds and lakes (Figs. 4-56 and 457). Some trees, such as Wil- lows, Poplars, Birches, and Alders, are common in swamp societies. In a swamp of the bog type, Sphagnum Moss, Orchids, and some trees, such as the Tamarack, Pine, and Hemlock, are character- istic plants. Aside from Rice, which is a Hydrophyte during a part of its. Fig. 455. — A pond in which are growing Water Lilies, plan
. Botany for agricultural students . Botany. 506 ECOLOGICAL CLASSIFICATION OF PLANTS plants of swamp societies are the Sagittarias, Bulrushes, Cat-tails, Rushes, Sedges, and Reedgrasses, which form fringes around ponds and lakes (Figs. 4-56 and 457). Some trees, such as Wil- lows, Poplars, Birches, and Alders, are common in swamp societies. In a swamp of the bog type, Sphagnum Moss, Orchids, and some trees, such as the Tamarack, Pine, and Hemlock, are character- istic plants. Aside from Rice, which is a Hydrophyte during a part of its. Fig. 455. — A pond in which are growing Water Lilies, plants typical of a Pond-weed society. After C. M. King. development, the hydrophytic societies are not noted for plants important economically. Mesophytic Societies. — The mesophytic societies comprise the common vegetation. They require a medium amount of moisture and a fertile soil. To these societies belong our culti- vated plants, weeds, and deciduous forests. The mesophytic condition is the arable condition and is the normal or optimum condition for plants. If a hydrophytic area is to be cultivated, it must be drained and made 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
