. The power of movement in plants . Plants; Botany. A. U. Marsilea quadrifolia/a: A, leaf during the day, seen from yertically above ; B, leaf beginning to go to sleep, seen laterally; C, the same asleep. Figures reduced to one-half of natural scale. vertically dependent glass filament was now fixed to one of the terminal and inner leaflets; and part of the tracing in Fig. 167, after 6 , shows that it continued to sink, making one zigzag, until At on the following morning, the leaf was awaking, and the filament pointed above the vertical glass. 6° J0'4i'aju. Marsi
. The power of movement in plants . Plants; Botany. A. U. Marsilea quadrifolia/a: A, leaf during the day, seen from yertically above ; B, leaf beginning to go to sleep, seen laterally; C, the same asleep. Figures reduced to one-half of natural scale. vertically dependent glass filament was now fixed to one of the terminal and inner leaflets; and part of the tracing in Fig. 167, after 6 , shows that it continued to sink, making one zigzag, until At on the following morning, the leaf was awaking, and the filament pointed above the vertical glass. 6° J0'4i'aju. Marsilea quadrifoliata: circumnatation and nyctitropic movement of leaflet traced on vertical glass, during nearly 24 h. Figure reduced to two- thirds of original scale. Plant kept at rather too low a temperature. but by a m. it occupied the position shown in the figure. The diagram differs greatly in appearance from most of those previously given; and this is due to the leaflet twisting and moving laterally as it approaches and comes into contast with. 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
