IG MR. DABWIK ON CLIMBING-PLANTS. 



(Dicotyledons, continued.) 



Thryallis hrachystachya (Malpighiacefe) moves against the sun : one shoot 

 made a circle in 12 h., and another in 10 h. 30 ni. ; but the next day, which was 

 much colder, the first shoot in my study took 10 h, to perform only a semicircle. 



mihertia dentata (Dilleniacese), placed in the hothouse, followed the sun, 

 and made (May 18th) a cu-cle in 7 h. 20 m. ; on the 19th, reversed its course and 

 moved against the sun, and made a circle in 7h.; on the 20th, moved against 

 the sun one-third of circle, and then stood still ; on the 26th, followed the sun 

 for two-thirds of circle, and then returned to its starting-point, taking for this 

 double course 11 h, 46 m, 



Sollya Drummondii (Pittosporacese) moves against the sun ; in greenhouse. 



h* tn* 



April 4, 1st circle 4 25 [day.) 

 „ 5, 2nd „ 8 (very cold 



h. m. 



April 6, 3rd circle 6 25 



» 7,4th „ 7 5 



Polygonum dumetorum (Polygonacese) . Tliis case is taken from Dutrochet 

 ([). 299), as T observed no allied plant ; follows tlie sun. Three shoots cut off 

 and placed in water made circles in 3h. 10 m., 5h. 20 m., and 7 h. 15 m. 



Wistaria Chinensis (Leguminosge) , in greenhouse, moves against the sun. 



May 13, 1st cu<cle 3 5 



„ 13,2nd „ 3 20 



„ 16,3rd „ ...,., 2 5 



h. m. 



May 24, 4th circle 3 21 



„ 25,5th „ 2 37 



„ 25,6th „ 2 35 



Phaseohis vulgaris (Leguminosse) , in greenhouse, moves against the sun. 



h. nil 



May, 1st circle 2 



» 2nd „ 1 55 



„ 3rd „ 1 55 



Dipladenia nrophglla (Apocynacea)) moves against the sun. 



h. m. 



April 18, 1st circle 8 



„ 19,2nd „ 9 15 



„ 30,3rd „ 9 40 



Dipladenia eras.nnoda moves against the sun. 



h. m. 



May 16,1st circle 9 6 



July 20, 2nd „ 8 



„ 21,3rd „ 8 5 



Ceropegia Oardnerii (Asclepiadacea;) moves against the sun. 



h. m. 



Shoot very young, 2 inches in length, let cu'cle in 7 55 



Shoot still young 2nd „ 7 



Long shoot 3rd « 6 3^ 



Long shoot 4th „ 5 15 



Long shoot 5tli ,, 6 45 



StepTianotisfoHhunda (Asclepiadacea;) moves agamst the sun, and ma' 

 pcle in 6h, 40 m., a second circle in about 9 hours. 



