. Elementary plant physiology. Plant physiology. Fig. 44.—^Transverse section of cladode of Asparagus medeloides (smilax). After Reinke. to the plant. Short branches arising from their axils are flattened and expanded as cladodes, and perform some of the functions of the leaf, including those of transpiration and food formation. 61. Stomatal openings.—Note the structure and ap- pearance of the stomata of the species examined. The open-. Fig, 45,—Transverse section of thallus of Marchantia^ siiowing stoma and tiie arrangement of clilorophyl-bearing cells beneath. After Kerner, ing which the sto

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. Elementary plant physiology. Plant physiology. Fig. 44.—^Transverse section of cladode of Asparagus medeloides (smilax). After Reinke. to the plant. Short branches arising from their axils are flattened and expanded as cladodes, and perform some of the functions of the leaf, including those of transpiration and food formation. 61. Stomatal openings.—Note the structure and ap- pearance of the stomata of the species examined. The open-. Fig, 45, —Transverse section of thallus of Marchantia^ siiowing stoma and tiie arrangement of clilorophyl-bearing cells beneath. After Kerner, ing which the stoma affords is seen to be a slit between two guard cells. (For a complete examination of the structure and action of stomata, see " Practical Plant Physiology, " pp. 196-. 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 work.. MacDougal, Daniel Trembly, 1865-1958. New York, London [etc. ] Longmans, Green, and Co.