. The power of movement in plants . Plants; Botany. Chap. IV CIECUMNUTATION OF STEMS. 205 its course greatly eiglit times and completed three irregular circles or ellipses. It therefore circumnutated rapidly. Some of the lines run at right angles to one another. Fig. Htcbus (hyboid) : circuranutation of stem, traced on horizontal glass, from 4 March 14th to 16th. Tracing much magnified, re- duced to half of original size. Plant illuminated feebly from above. As -we hap- Fig. 75. (7.) Ruhus idceus (hybrid) (Eosacese, Fam. 76).- pened to have a young plant, 11 inches in heigh
. The power of movement in plants . Plants; Botany. Chap. IV CIECUMNUTATION OF STEMS. 205 its course greatly eiglit times and completed three irregular circles or ellipses. It therefore circumnutated rapidly. Some of the lines run at right angles to one another. Fig. Htcbus (hyboid) : circuranutation of stem, traced on horizontal glass, from 4 March 14th to 16th. Tracing much magnified, re- duced to half of original size. Plant illuminated feebly from above. As -we hap- Fig. 75. (7.) Ruhus idceus (hybrid) (Eosacese, Fam. 76).- pened to have a young plant, 11 inches in height and growing vigorously, which had been raised from a cross between the raspberry {Ruhus idceus) and a North American Eubus, it was observed in the usual manner. During the morning of March 14th the stem almost completed a circle, and then moved far to the right. At 4 it reversed its course, and now a fresh tracing was begun, which was con- tinued during 40^ h., and is given in Fig. 74. We here have well-marked circumnutation. (8.) Deutzia gracilis (SaxifrageiE, Pam. 77).—A shoot on a bush about 18 inches in height was observed. The bead changed its course greatly eleven j^^^ times in the course of 10 h. 30 m. (Fig. 75), and there could be no doubt about the circumnutation of the stem. (9.) Fuchsia (greenhouse van., with large flowers, probably a hybrid) (Ona^ grariesB, Fam. 100).—A young plant, 15 inches in height, was observed during nearly 48 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 Darwin, Charles, 1809-1882; Darwin, Francis, Sir, 1848-1925. New York : D. Appleton
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