. American carnation culture. Carnations. 60 AMERICAN CARNATION CULTURE. water—darkness and water close the valves of these breathing plant's mouths. Careful experiments have determined that one superficial foot of leaf surface exhales one and one-fourth ounces of vapor in twelve hours of sunshine. Light lifts the valves and opens the throttles for plant respiration. Darkness, rain and dew closes the pores and maintains merely and equilibrium of plant. Fig. 2.—Section taken at right angles to the surface through a stoma. The guard- cells, forming the automatic valves, are shown touching each o
. American carnation culture. Carnations. 60 AMERICAN CARNATION CULTURE. water—darkness and water close the valves of these breathing plant's mouths. Careful experiments have determined that one superficial foot of leaf surface exhales one and one-fourth ounces of vapor in twelve hours of sunshine. Light lifts the valves and opens the throttles for plant respiration. Darkness, rain and dew closes the pores and maintains merely and equilibrium of plant. Fig. 2.—Section taken at right angles to the surface through a stoma. The guard- cells, forming the automatic valves, are shown touching each other, so that the stoma passage is closed. The epidermal cells are empty, but the outer vsrall is excessively thick. circulation. This is an explanation for not spraying carnations in cloudy weather, in the absence of the drying rays of the sun. Wilted plants are fresh and full of sap after a night of dark- ness and dew, because they have absorbed fluids by the root, and exhaled none in the form of vapor by the leaves. They have been breathless, in a coma, waiting for the sorcery of sun light to stir the magic forces of life into active 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 Lamborn, Levi Leslie, 1829- [from old catalog]. Alliance, Ohio, L. L. Lamborn
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