
1905.] On the Physiological Processes of Green Leaves. 63 
Table XI.—Respiration of Amphistomatous Leaves showing Relation of 
Carbon Dioxide evolved by Upper and Lower Surface, and Ratio of 
Distribution of Stomata. 
U. = Upper surface. L. = Lower surface. 
















Oz | : Ratio 
Time Gs eee, pale Gs of stomatic 
in square | . : evolved. Bee ais 
Plant. in hea |) sit cubic Upper is ution. 
hours. | metres. gen Lower are. 
metres. Lower 
(1) Canna indica.... 4°75 | 28°27 |U. 8:41) 100 100 
| L. 20°76 246 246 
(2) 49 rea Or 28°27 Were as 100 100 
L. 17+90 329 O46 
Dag 39 e AOS | 98-29% |. 3-04) 100 100 
L. 6°40 210 946. 
(4) Rumex alpinum 5°5 59°44 | U. 1°03 100 100 
L. 3°60 | 286 369 





Table XII.—Assimilation of Amphistomatous Leaves illuminated on Upper 
Surface, showing Relation of Intake of Carbon Dioxide by the Upper 
and Lower Sides and the Ratio of Distribution of Stomata. 
U. = Upper side. L. = Lower side. 











. Ratio of 
Leaf Ratio of : 
: CO, stomatic 
si Time | area 10 | sesimilated,| 002, | distribu. 
ant. in | square|” . - ’/assimilated. : 
hours. | centi- pe Saal Upper. ses 
Wieiee metres.) y—— Pee 
ower. 
(1) Colchicum speciosum ...| 5°75 | 59°44 | U. 4°34 100 100 
Doel TG 119 
(2) Senecio macrophyllum...| 4°75 | 28°27 | U. 3:90} 100 eae 
LS G0 92 126 
CB, +4 wise VE" 25 1) - 28°27) UL. 5°80 100 100 
L. 4:20 72 126 
(4) Rumex alpinum ......... 5°0 | 59°44 | U. 5-70 100 100 
L. 8°90; 144 269 
(Beh, SM ANSE 525 | 59440) U. 7°50 100 100 
 Voed 130 969 




