. Nature and development of plants. Botany. io8 NATURE OF TENDRILS acts like a spring permitting considerable disturbance of the vine without danger of breaking. This same device is copied in making the attachment of the wires to the telephones and other pieces of apparatus. From many standpoints the tendril bearing stem is an admirable one. It is evident that such stems can reach the light more directly and economically than twiners. This doubtless accounts for their greater abundance and common. Fig. 68. Fig. 69. Fig. 68. Tendrils of the bur cucumber: A, hooked tendrils in receptive state. B
. Nature and development of plants. Botany. io8 NATURE OF TENDRILS acts like a spring permitting considerable disturbance of the vine without danger of breaking. This same device is copied in making the attachment of the wires to the telephones and other pieces of apparatus. From many standpoints the tendril bearing stem is an admirable one. It is evident that such stems can reach the light more directly and economically than twiners. This doubtless accounts for their greater abundance and common. Fig. 68. Fig. 69. Fig. 68. Tendrils of the bur cucumber: A, hooked tendrils in receptive state. B, apical portion of tendril coiled about a branch and the remaining portion of the tendril forming reversed coils, thus drawing the vine to the supporting branch.—H. O. Hanson. Fig. 69. Branch of Japanese ivy attached to wall by means of tendrils with adhesive discs.—J. O. Hanson. occurrence. It is also important to note that the tendrils are especially abundant at the end of the branches where they reach out considerably beyond the young leaves. Owing to the sway- ing of the long free shoot of the climber in the wind and the nutations of the tendril and shoot these sensitive organs are. 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 Curtis, Carlton Clarence, 1864-1945. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisher, booksubjectbotany
