; so that, on an average, each was performed in
2 hrs. 15 m.
Plumbago rosea (Plumbaginaceae) follows the sun. The shoot did not
begin to revolve until nearly a yard in height; it then made a fine
circle in 10 hrs. 45 m. During the next few days it continued to
move, but irregularly. On August 15th the shoot followed, during a
period of 10 hrs. 40 m., a long and deeply zigzag course and then
made a broad ellipse. The figure apparently represented three
ellipses, each of which averaged 3 hrs. 38 m. for its completion.
Jasminum pauciflorum, Bentham (Jasminaceae), moves against the sun.
A circle was made in 7 hrs. 15 m., and a second rather more quickly.
Clerodendrum Thomsonii (Verbenaceae) follows the sun.
H. M.
April 12, 1st circle was made in 5 45 (shoot very young)
14, 2nd 3 30
{(directly after the
18, a semicircle 5 0 { plant was shaken
{ on being moved)
19, 3rd circle 3 0
20, 4th 4 20
Tecoma jasminoides (Bignoniaceae) moves against the sun.
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