1894.] Absorption of Water by Green Parts. 141 
five d 
kept wet. Placed in large Wardiancase: third day, alldrooping both leaves 
“i aati : ; be 
and stem, but less in no. 3; ay, no perceptible difference between I 
and 2, but from no. 3 leaves have dr d, though stem in better condition 
than in 1 and2, Continued until all dead, with no marked difference be- 
In all of the above cases, and in others not here described, 
the wrapped plants acted precisely as if the wet paper were 
hot present; in other words they showed no signs of ability to 
“supplement their root supply” from this source. How very 
different is their behavior in comparison with that of Hen- 
slow’s cut shoots exposed to very similar conditions! 
Exp. f. A Coleus Sin high, allowed to dry slowly in Wardian case until drooping, 
Pe through Partial exhaustion of root supply; wrapped in rubber, wt. 158.- 
3 laid on side an sprayed with water for several minutes, completely 
8 
test. 
o 1oung Pelargonium dried slowly in Wardian case until leaves drooped; 
Wrapped in rubber and laid on side and thoroughly drenched with spray; dur- 
: a“ after drying it did not revive in the slightest 
1aN Case, wt 
nearly so, wt. 
wt. 203.0058, 
Y young Begonia; wrapped in rubber, and kept in Wardian 
d slightly, wt. 179.0908"; sprayed thoroughly and at once 
put in a wet bell jar; next day, wt. 179.0708m: four days later, 178.2508" and 
€ 
a troopin g, Ceti Begonia, ore and Hura pleas allowed to oD. slowly 
i reshdey cri from the roots, always failed to revive, and when weighed 
ti 
small of course true, that in any or all of these cases, very 
quantities of water may have been absorbed. But it 
seems plain that 
could be taken b m 
Plied to them. 
crease it: b 
» Dut 
wed toa mini 
ms : 
to the ny fertain that no absorption sufficient to be of use 
ccur, 
es, 
from oxo tes plants, through their green parts, absorb 
tity of liquid (hydrostatic) water? 
