348 
BUTANICAL GAZETTE 
[MAY 
MEASUREMENTS OF LENGTH OF CELLS OF CONCAVE SIDE—cont d. 
Apical Basal Average 
(Ss). 28 28 2 22 22 26 30 18 23.62 
(6) 28 25 25 30 28 20 20 25.75 
(7) 20 20 23 31 30 30 35 40 28.62 
(8) 28 a2 40 20 28 35 33 36 30.25 
ig): 2 20 28 38 p 30 20 20 24.75 
Average length of cells, - - - . 30.32 
MEASUREMENTS OF WIDTH OF CELLS OF CONVEX SIDE. 
Apical Basal Average 
1 ie ae ieee ie, A es a Se 6.36 
ee ee eR ee ges 5-55 
Baek 4 s . 4-75 
i fee a Ee rey Zea 8. 
(Sy. See oe as TO 9 II 9 10.1 
(6) 8 9 dl to. = to =.) —- BS 10 9 9.66 
Gy th ae as Ee ae | 9G Be Cote 10.6 
ee aon caer Va ee ee ar 8.25 
Average width of cells, - - - - - - 7-91 
MEASUREMENTS OF WIDTH OF CELLS OF CONCAVE SIDE. 
Apical Basal Average 
coop se io > ee ke 8 Sa) ee ks 9-7 
sete a ee ee ~ 10.1 
ee Fee ae 8 Ee 71 
es a Be 8. 
gee ae Fe 8 ee a. 66 16 8.66 
(6) 6 8 , ere f coun alee, © See GE ic 10.1 
ey. ote Se ee G8 ot ee ee 9-55 
ee eee a ee 11.22 
Average width of cells, - - - - - 9-3 
The total width of the section in the region of curvature iS 
about .82™", of the convex cortical region .22™™, and of the con- 
cave cortical region .2™™. The walls of the epidermal cells of the 
concave side are wavy and folded, showing the end pressure 
exerted against them. The cortex of the concave side exhibits 
_ numerous foldings on both longitudinal and end walls, much 
‘greater than in the cells mechanically bent without previous 
excitation. The epidermal and three (in some places four) sub- 
