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Darwin, Charles, 1809-1882

"The Movements and Habits of Climbing Plants"

M.
April 18, 1st circle was made in 8 0
19, 2nd 9 15
30, 3rd 9 40
Dipladenia crassinoda moves against the sun.
H. M.
May 16, 1st circle was made in 9 5
July 20, 2nd 8 0
21, 3rd 8 5
Ceropegia Gardnerii (Asclepiadaceae) moves against the sun.
H. M.
Shoot very young, 2 inches }
in length } 1st circle was performed in 7 55
Shoot still young 2nd 7 0
Long shoot 3rd 6 33
Long shoot 4th 5 15
Long shoot 5th 6 45
Stephanotis floribunda (Asclepiadaceae) moves against the sun and
made a circle in 6 hrs. 40 m., a second circle in about 9 hrs.
Hoya carnosa (Asclepiadaceae) made several circles in from 16 hrs. to
22 hrs. or 24 hrs.
Ipomaea purpurea (Convolvulaceae) moves against the sun. Plant
placed in room with lateral light.
{Semicircle, from the light in
1st circle was made in 2 hrs.


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