328 s. KUSANO : transpiration op 



-yr e •D^ t Total amount of Trans- Redncerl to the tmit 



piration dnring experiments. area oi leaves Q t'ln- 



Ternstrœmia 142.0 gr. 



Thea 36.5.0 „ 



Eriohotrya 336.5 ,, 



Fholinia 327.5 , , 



Fatsia 386.0 „ 



Dapliniphylhim 386.5 ,, 



If these are arranged, according to the vahie of their amounts, 

 in a descending order, they stand in the following succession : — 

 QuercuSj Eriohotrya, Fatsia, Pittosporum, Photinia, Plicium, 

 Daj)hniphylliim, Thea and Ternstrœmia. 



Äfode of transpiration. When we compare the intensity of 

 transpiration of different kinds of plants, we see that their 

 differences are smaller when the plants are in the period of their 

 minimum transpiration, that is, at the end of January in the 

 case of my experiments. If we take, for example, the amount of 

 transpiration in the case of Ternstrœmia as a unit, the relative 

 amounts in the other plants might stand as follows (conf. Tahle 

 III) :- 



Qaerciis 2.75 



FiUosporitm 1.54 



lllicium 1.40 



Ternstrœmia 1.00 



Thea 1.00 



Eriohotrya 1.45 



Fhotinia 1.20 



Faisia 1.50 



Daphniphyllum 1.32 



Thus, with the exception of Quercus, practically none exceeds 

 one and a half times. 



