. The power of movement in plants . Plants; Botany. A. B. Canna Warscewiczii; circumnutation of leaf, traced (A) from Jnne 10th to 11th; and (B) from 11th to 12tb. Apex of leaf 9 inches from the Tertical glass. (28.) Iris pseudo-acorus (Iridese, Fam. 10).—The movements of a young leaf, rising 13 inches above the water in which the plant grew, were traced as shown in the figure (Fig. 116), during 27 h. 30 m. It manifestly circumnutated, though only to a small extent. On the second morning, between and 2 (at which latter hour the figure here
. The power of movement in plants . Plants; Botany. A. B. Canna Warscewiczii; circumnutation of leaf, traced (A) from Jnne 10th to 11th; and (B) from 11th to 12tb. Apex of leaf 9 inches from the Tertical glass. (28.) Iris pseudo-acorus (Iridese, Fam. 10).—The movements of a young leaf, rising 13 inches above the water in which the plant grew, were traced as shown in the figure (Fig. 116), during 27 h. 30 m. It manifestly circumnutated, though only to a small extent. On the second morning, between and 2 (at which latter hour the figure here given ends), the apex changed its course five times. During the next 8 h. 40 m. it zigzagged much, and descended as far as the lowest dot in the figure, making in its course two very small eUipses; but if these lines had been added to the diagram it would have been too complex. (29.) Crinum, Cupense (Amaryllidese, Fam. 11).—The leaves of this plant are remarkable for their great length and narrowness: one was measured and found to be 53 inches long and only 1"4 broad at the base. Whilst quite young they stand up almost vertically to the height of about a foot; afterwards. Iris pseudo-acorus: oircnm- nutatiou of leaf, traced from May 28th to 2 29th. Tracing continued to 11 , but not here copied. Apex of leaf 12 inches beneath the horizontal glass, so figure considerably mag- nified. Temp. 15°-16° 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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Keywords: ., bookcentury1800, booksubjectbotany, booksubjectplants, bookyear18
