﻿134 



LIVING PLANTS 



Total results 

 with Arisaema 



similar 

 of 



in free 

 assum- 

 The a- 

 of food 



able for devel- 

 have been two 

 great as that 

 single leaf. In 

 days, however, 

 to exhibit signs 

 but if at this 

 moved from the 

 placed in the 

 m a 1 condition 

 development 

 usual manner, 

 the result of the 

 ments that the 

 plant of Arisae- 

 of development, 

 ing stage in an 

 from carbon di- 

 the three aerial 

 moved, the re- 

 attain a more 

 developmen t. 

 tioles are great- 

 the laminae un- 



to that 

 plan ts 

 air was 

 ed. 



mount 

 avail- 

 o p m e n t m u s t 

 or three times as 

 usually afforded a 

 twelve to fourteen 

 the laminae began 

 o f deterioration ; 

 time they were re- 

 apparatus and 

 open air the nor- 

 was regained and 

 proceeded in the 

 It is to be seen as 

 foregoing ex peri - 

 leaves on an entire 

 ma are incapable 

 beyond the unfold- 

 atmosphere free 

 oxide. If two of 

 members are re- 

 maining one ma}' 

 advanced stage of 

 In darkness the pe- 

 ly elongated, and 

 fold, but no expan. 



Fig. 16. — Arisaema triphyllum with flower stalk and one 

 leaf ctit away, in an atmosphere free from carbon dioxide. 



