. The power of movement in plants. Plants; Botany. Chap. IV. DICOTYLEDONS. 235 of tlie two terminal leaflets, wliicli were 14 inch in length; and the movements of one of them were traced during 48 h. (see Fig. 101). The course pursued is closely analogous to that oi ths whole leaf. The zigzag line between and on the second day represents 5 very small ellipses, with their Fig. 101. lO' M'SO'tLmev io'40' 4" Vicia faia: circumnutation of one of the two terminal leaflets, the main petiole having been secured, traced from July 4th to 6th.
. The power of movement in plants. Plants; Botany. Chap. IV. DICOTYLEDONS. 235 of tlie two terminal leaflets, wliicli were 14 inch in length; and the movements of one of them were traced during 48 h. (see Fig. 101). The course pursued is closely analogous to that oi ths whole leaf. The zigzag line between and on the second day represents 5 very small ellipses, with their Fig. 101. lO' M'SO'tLmev io'40' 4" Vicia faia: circumnutation of one of the two terminal leaflets, the main petiole having been secured, traced from July 4th to 6th. Apex of leaflet 6| inches from the vertical glass. Tracing here reduced to one-half of original scale. Temp. 16°-18° C, longer axes differently directed. From these observations it follows that both the whole leaf and the terminal leaflets undergo a well-marked daily periodical movement, rising in the evening and falling during the latter part of the night or early morning; whilst in the middle of the day they generally circumnutate round the same small 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, Appleton
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
