THE STARCH OF EVERGREEN LEAVES st 
Starch contents 2" Treatment 
Aj 1-2 2-3 ? Put into the dark room. 
ee 12 2-3 ? Remained out of doors as a check.” 
At ga.m., February 10 (m. t. 3°1, max. 826, min. 2°6) the 
leaves of both plants were examined, and it was found that the __ 
darkened plant had lost all of its starch in the leaves, while the 
‘starch of the check plant remained constant. 3 
Then A was exposed to light out of doors. At 5P.mM.of 
the same day the leaves were again examined and the starch oe 
‘tontents were found to be 1_2. - 
Fetsta japonica. ; 
Two pot- plants, each about two-thirds of a meter high, were 
wed, On January 23 the léaves of both were examined and 
eied as follows: 
‘ Treatment 
I-II Put into the dark room 
a 3 +E Exposed to light out of doors as a check. — 
: On February 17 the leaves of A were found to be free from a 
» and the starch contents of Bhad remained constant. At 
‘February 20 (m.t. 3°4, max. 9°7, min. —0°8) the dark- 
plant was put into the light out of doors. At 5 P.M. of 
same day the starch contents of A were 2, 2, LHI; = me 
“as a? 22 it became 3, 3, I-II. 
the § 
x Cinnamomum Camphora. i 
small pot-plant about two-thirds of a ‘meter higt 
for the leaf-starch at 2 Pp. M. February 9, and at 
tinto the dark room. The starch contents then were 2-3, 2-% 
OAM, February 20, it was found that all the starch had 
“ared from the mesophyll. The plant was exposed to lig t 
of doors, at noon of the same day, and at 5 P.M. of the. ane 
starch was found to be 1—2, I—2, — been 2 
€ hours, 
ey 
arch Contents of palisade and spon hyma ,and ofthe an 
he 2 etee Separate columns. It is moreover to : =. of 
contents sh mall pot-plant nerall richer 
“ate ras s pot-plants are ge y. 
a. of ng 
: eee “we pots were buried in the ground to event the f 
