APPENDICES. 



2 



Effects following amputation of tips of 



143 



Experiment XLL— Actio 



EXPERIMENT AJLil.— Action m \\\* fi rQ f t**m 1 t ji .• 



ieaves situated at ace di s ta n ce lo™ 5 tt'coul S ^tot" * "* ^ » "" «*" 



i™!?: ^"r^^'.p-w- . f n,™^ to *'«» w™. 



XLIII 

 XLIV 



Centripetal propagation of movement to all the leave. 



shoot, 

 elioot 



beneath the tip a,on g the ^ot^ZZZt """""^ * *" "*" *"" " *»»«*•«* 



Exp EKI m EST XLY.-Cen.npeta! propagation ei movement to aH the leave, on the ..me .hoot. 



h.-Xemlt, following «. application of fame u the tips of terminal pinnule, of dUtal pinna, 



1. Plants rooted in the open ground. 



above it on the axis. 



XLVL— Complete 



and the one next 



above 



XLYIL- Complete 



one nest 



XLYIII 



below 



the primary 



b 



Expebiment XLIX.-Complete action throughout the injured leaf; complete action in one leaf 



the 



Experiment LI.— Complete action throughout the injured leaf ; incomplete action in two above 



one below it on the same axis. 



2. Pot-plants. 





In the case of pot-plants the effects following the application of flame to the tips of pinnules 



are 



bove 



much more extensively propagated, owing, no doubt, to their more limited 



Experiment LIL — Complete action in the 

 and in one below it on the same axis. 



Experimknt LIIL— Complete action in the injured leaf ; followed by complete action in all the 

 other leaves over the entire plant. 



the 



LIV.— Complete action in the injured leaf, followed by complete action throughout 



Experiment LV. — Complete action in the injured leaf, followed by complete action in all the 



leaves on the same shoot save the lowest one. 



Experiment LYI. — Complete action in the injured leaf and in the three leaves next above it on 

 the axis. 



Experiment LVII. — Complete action in the injured leaf and in all the others on the same axis. 



The following experiment illustrates the influence which differences in degree of soil-moisture alone 

 are capable of exerting on the nature of the phenomena attending the application of flame to the tips 

 of terminal pinnules of distal pinnae. 



Experiment LVIII. — June 22nd. Atmospheric temperature 84* 5° F. Humidity 77 per cent — Two 

 pot-plants, A and 23, were standing side by side in the open air and were under precisely the same 

 circumtances, save that the earth in the pot in which A was contained was dry, whilst that in the 

 pot containing B was thoroughly moist in consequence of the recent addition of water. 



When flame was applied to the terminal pinnules of leaves of A complete action through- 

 out the injured leaf, followed by the occurrence of movements in varying numbers of leaves 

 situated along the course of the same shoot, occurred in every instance; whereas, when similar treat- 



ment was applied to leaves of -3, it was followed merely by slow, imperfect elevation of all the 



Ann. Hoy. Bot. Gard. Calcutta Vol. VI 



