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. 42 m. { 1 hr. 14 m., to the light
{ 1 hr. 28 m.: difference 14 m.