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 (Asclepiadaceæ) 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 (Asclepiadaceæ) moves against the sun and made a circle in 6 hrs. 40 m., a second circle in about 9 hrs.

Hoya carnosa (Asclepiadaceæ) made several circles in from 16 hrs. to 22 hrs. or 24 hrs.

Ipomæa purpurea (Convolvulaceæ) moves against the sun. Plant placed in room with lateral light.

1st circle was made in 2 hrs. 42 m. Semicircle, from the light in 1 hr. 14 m., to the light 1 hr. 28 m.: difference 14 m.
2nd circle was made in 2 hrs. 47 m. Semicircle, from the light in 1 hr. 17 m., to the light 1 hr. 30 m.: difference 13 m.

Ipomæa jucunda (Convolvulaceæ) moves against the sun, placed in my study, with windows facing the north-east. Weather hot.

1st circle was made in 5 hrs. 30 m. Semicircle, from the light in 4 hrs. 30 m., to the light 1 hr. 0 m.: difference 3 hrs. 30 m.
2nd circle was made in 5 hrs. 20 m. (Late in afternoon: circle completed at 6 hrs. 40 m. P.M.) Semicircle, from the light in 3 hrs. 50 m., to the light 1 hr. 30 m.: difference 2 hrs. 20 m.