circumnutate
Example Sentences
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These observations were made before we were aware at what an extraordinarily rapid rate the cotyledons circumnutate, and are therefore liable to error.
From The Power of Movement in Plants by Charles Darwin
By 7.15 P.M. it was asleep and vertically dependent, but continued to circumnutate as long as observed, until 11 P.M.
From The Power of Movement in Plants by Charles Darwin
But the tracing shows that the basal part of the radicle continued to circumnutate irregularly during the whole time.
From The Power of Movement in Plants by Charles Darwin
With these facts before us, bearing also in mind that the tendrils of not a few plants consist of modified peduncles, we may admit without much doubt that all growing flower-stems circumnutate.
From The Power of Movement in Plants by Charles Darwin
This movement has been called by Sachs "revolving nutation;" but we have found it much more convenient to use the terms circumnutation and circumnutate.
From The Power of Movement in Plants by Charles Darwin
It circumnutated, and the actual distance travelled from side to side was a quarter of an inch, which was too small an amount to be perceived without the aid of marks.
From The Power of Movement in Plants by Charles Darwin
At 6 P.M. the great nocturnal rise commenced, and on the next morning the sinking of the leaflet was continued until 8.30 A.M., after which hour it circumnutated in the manner just described.
From The Power of Movement in Plants by Charles Darwin
Two older seedlings were similarly observed, excepting that one of them was kept in the dark; their hypocotyls also circumnutated, but in a more simple manner.
From The Power of Movement in Plants by Charles Darwin
Circumnutation of Hypocotyls and Epicotyls, when erect.—The hypocotyls, epicotyls, and first shoots of the many seedlings observed by us, after they had become straight and erect, circumnutated continuously.
From The Power of Movement in Plants by Charles Darwin
On the third morning they fell very much, and then circumnutated on a small scale round the same spot; by 8.20 P.M. they showed no tendency to rise at night.
From The Power of Movement in Plants by Charles Darwin
Under these circumstances it was interesting to observe how rapidly the circumnutating apex of a cotyledon passed across the divisions of the micrometer.
From The Power of Movement in Plants by Charles Darwin
Another leaflet was casually observed, and found to be continually circumnutating during the same length of time.
From The Power of Movement in Plants by Charles Darwin
Here therefore there is in the evening the same conversion of a circumnutating into a steady movement in one direction, as in the case of the main petiole.
From The Power of Movement in Plants by Charles Darwin
Morren, however, has observed** in the stamens of Sparmannia and Cereus a "fremissement spontané," which, it may be suspected, is a circumnutating movement.
From The Power of Movement in Plants by Charles Darwin
Thus the circumnutating stems of Solnanum dulcamara can twine round a support only when this is as thin and flexible as a string or thread.
From The Power of Movement in Plants by Charles Darwin
