354 



MODIFIED CIKOUMNUTATION. 



Chap. VU 



others, but only in Eobinia with any care. Psoralea acaulit 

 raises its three leaflets at night ; whilst Amorpha fruticosa* 

 Dalea cdopecuroides, and Indigofera tinctoria depress them. 

 Duchartre t states that Tephrosia cariboea is the sole example 

 of " folioles oouchees le long du petiole et vers la base ; " but a 



Fig. 145. 



A. B. 



IjoIus Cieticus: A, stem with leaves awake during the day; B, with leaves 

 asleep at night. SS, stipule-like leaflets. 



similar movement occurs, as we have already seen, and shall 

 again see in other cases. Wistaria Sinensis, according to 

 Eoyer,t "abaisse les folioles qui par uue disposition bizarre 

 sont inclin^es dans la meme feuille, les sup§rieures vers le 



* Duoharte, 'Elements de 

 Botanique,' 1867, p. 349. 

 t Ibid., p. 347. 



X 'Ann. dee Sciences, Nata 

 Bot.' eSth Beries), ix, 18ti8. 



