The Movements and Habits of Climbing Plants [11]
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.
H. M. March 17, 1st circle was made in 6 30 19, 2nd 7 0 22, 3rd 8 30 (very cold day) 24, 4th 6 45
Thunbergia alata (Acanthaceae) moves against sun.
H. M. April 14, 1st circle was made in 3 20 18, 2nd 2 50 18, 3rd 2 55 18, 4th 3 55 (late in afternoon)
Adhadota cydonaefolia (Acanthaceae) follows the sun. A young shoot made a semicircle in 24 hrs.; subsequently it made a circle in between 40 hrs. and 48 hrs. Another shoot, however, made a circle in 26 hrs. 30 m.
Mikania scandens (Compositae) moves against the sun.
H. M. March 14, 1st circle was made in 3 10 15, 2nd 3 0 16, 3rd 3 0 17, 4th 3 33 April 7, 5th 2 50 7, 6th 2 40 {This circle was made { after a copious water- { ing with cold water at { 47 degrees Fahr.
Combretum argenteum (Combretaceae) moves against the sun. Kept in hothouse.
H. M. {Early in morning, when Jan. 24, 1st circle was made in 2 55 { the temperature of the { house had fallen a { little.
24, 2 circles each at an } average of } 2 20 25, 4th circle was made in 2 25
Combretum purpureum revolves not quite so quickly as C. argenteum.
Loasa aurantiaca (Loasaceae). Revolutions variable in their course: a plant which moved against the sun.
H. M. June 20, 1st circle was made in 2 37 20, 2nd 2 13 20, 3rd 4 0 21, 4th 2 35 22, 5th 3 26 23, 6th 3 5
Another plant which followed the sun in its revolutions.
H. M. July 11, 1st circle was made in 1 51 } 11, 2nd 1 46 } Very hot day. 11, 3rd 1 41 } 11, 4th 1 48 } 12, 5th 2 35 }
Scyphanthus elegans (Loasaceae) follows the sun.
H. M. June 13, 1st circle was made in 1 45 13, 2nd 1 17 14, 3rd 1 36 14, 4th 1 59 14, 5th 2 3
Siphomeris or Lecontea (unnamed sp.) (Cinchonaceae) follows the sun.
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.
H. M. March 17, 1st circle was made in 6 30 19, 2nd 7 0 22, 3rd 8 30 (very cold day) 24, 4th 6 45
Thunbergia alata (Acanthaceae) moves against sun.
H. M. April 14, 1st circle was made in 3 20 18, 2nd 2 50 18, 3rd 2 55 18, 4th 3 55 (late in afternoon)
Adhadota cydonaefolia (Acanthaceae) follows the sun. A young shoot made a semicircle in 24 hrs.; subsequently it made a circle in between 40 hrs. and 48 hrs. Another shoot, however, made a circle in 26 hrs. 30 m.
Mikania scandens (Compositae) moves against the sun.
H. M. March 14, 1st circle was made in 3 10 15, 2nd 3 0 16, 3rd 3 0 17, 4th 3 33 April 7, 5th 2 50 7, 6th 2 40 {This circle was made { after a copious water- { ing with cold water at { 47 degrees Fahr.
Combretum argenteum (Combretaceae) moves against the sun. Kept in hothouse.
H. M. {Early in morning, when Jan. 24, 1st circle was made in 2 55 { the temperature of the { house had fallen a { little.
24, 2 circles each at an } average of } 2 20 25, 4th circle was made in 2 25
Combretum purpureum revolves not quite so quickly as C. argenteum.
Loasa aurantiaca (Loasaceae). Revolutions variable in their course: a plant which moved against the sun.
H. M. June 20, 1st circle was made in 2 37 20, 2nd 2 13 20, 3rd 4 0 21, 4th 2 35 22, 5th 3 26 23, 6th 3 5
Another plant which followed the sun in its revolutions.
H. M. July 11, 1st circle was made in 1 51 } 11, 2nd 1 46 } Very hot day. 11, 3rd 1 41 } 11, 4th 1 48 } 12, 5th 2 35 }
Scyphanthus elegans (Loasaceae) follows the sun.
H. M. June 13, 1st circle was made in 1 45 13, 2nd 1 17 14, 3rd 1 36 14, 4th 1 59 14, 5th 2 3
Siphomeris or Lecontea (unnamed sp.) (Cinchonaceae) follows the sun.