Ohap. IV. 



DICOTYLEDONS. 



217 



(20.) Allamanda SchotUi (Apocyneae, Fam. 144). — The young 

 loaves of this shrub are elongated, with the blade bowed so much 



Fig. an 



eso'am-S'} 



■fi'4:0'a.m. 5'.* 



7^.m.* 



Cyclamen Persicum ; circumnutation of leaf, traced from 6.45 A.ii Jane 2ad 

 to 6.40 A.M. 5th. Apex of leaf 7 inches from the vertical glass, 



downwards as almost to form a semicircle. The chord — that 

 is, a Kne drawn from the apex of the blade to the base of the 

 petiole — of a young leaf. 4i inches in length, stood at 2.50 p.m on 



17 



