62 Margaret W. Rea 
Table I. Data concerning the stomata of the "Whole” Shoot. 
Leaf position 
on shoot 
ist = lowest 
20th = highest 
Leaf area 
in sq. mm. 
Lower surface 
Upper surface 
Av. no. of 
stomata per 
sq. mm. 
for both 
surfaces 
No. of 
stomata 
Av. no. 
per sq. mm. 
No. of 
stomata 
Av. no. 
per sq. mm. 
r 2oth 
10*2 
1,107 
108-53 
940 
92-16 
100-34 
19th 
I9-0 
2,888 
152-0 
2,498 
131*47 
i4i*73 
18th 
41-0 
5.488 
I 33'85 
4,294 
104*73 
119*79 
u 
17th 
46-1 
5.366 
110-64 
3,495 
75*8i 
93*22 
16th 
49-5 
4.554 
92-0 
3,400 
68-69 
75*34 
15th 
55*8 
5.039 
90-30 
2,931 
52*53 
71-41 
14th 
49-2 
5.072 
103-09 
3 T 30 
63-62 
83*35 
13th 
58-0 
6,281 
109-29 
2,275 
56*47 
82-38 
12th 
55-8 
7.893 
141*45 
3,392 
60-79 
IOI-I2 
mth 
59-3 
6,297 
106-19 
2,948 
49*71 
77*95 
noth 
68-3 
8,129 
II9-2 
2,461 
. 36*03 
77*52 
O) 
9th 
68-o 
7.865 
115-66 
2,479 
36*45 
76*05 
-3 
8th 
68-o 
7.724 
ii 3*59 
2,016 
29*65 
71-62 
II 
7th 
65-2 
7.778 
119-29 
2,050 
31*44 
75*36 
s 
6th 
43*4 
4.oi5 
92-51 
1,429 
32-92 
62-71 
fl 
1 5th 
33*0 
3.005 
91-06 
987 
29-91 
60-63 
^ 4th 
29*6 
3.359 
113-48 
962 
32*50 
77*99 
11 
r 3 rd 
24*1 
2,738 
113-61 
997 
41*37 
77*49 
11 
2nd 
14-7 
1,666 
ii 3*33 
848 
57*69 
85*51 
2 1 
ist 
13-0 
1,250 
96-15 
579 
44*54 
70*34 
Total = 
97,514 
44 .ni 
Table II. Data concerning the stomata of the Normal Shoot. 
f 24th 
i*3 
136 
104-61 
109 
83*84 
99-22 
1 
23rd 
4*4 
3 °o 
62-12 
235 
53*41 
57*76 
22nd 
13*0 
961 
74*o 
580 
44*63 
59*31 
2 ist 
18-2 
1,897 
104-23 
875 
48-0 
76-11 
u 
0 J 
20th 
40-0 
3,238 
80-95 
1,465 
36-62 
58-78 
19th 
49*2 
3,72i 
75*3 
1,409 
28-64 
51*97 
18th 
52-6 
4,425 
84-12 
i,579 
30-0 
57*o6 
17th 
7*5 
816 
108-0 
367 
49*o 
78*5 
16th 
45*o 
4,169 
92-64 
1,728 
38*4 
65*52 
15th 
48-3 
4,827 
99*94 
1,580 
32-71 
66-32 
14th 
36-2 
3,232 
89*3 
1,223 
33*8 
6 i *55 
^i 3 th 
33*3 
2,484 
74*6 
1,164 
35*o 
54*8 
12 th 
38*3 
2,496 
65-17 
1,284 
33*53 
49*35 
'd 
nth 
34*2 
2,348 
68-65 
1,264 
37*o 
52*82 
9" 
10th 
38-2 
3,308 
86-6 
1,923 
50*34 
68-47 
<D 
9th 
40-2 
3,800 
94*53 
2,028 
50*45 
* 72*49 
l 8th 
8th leaf 
was missing 
1-1 
7th 
28-7 
4,950 
172-82 
2,390 
83*28 
128-05 
6th 
40*4 
5,970 
147-77 
2T53 
53*3 
100-53 
-d 
5th 
24*3 
2,33i 
96-0 
863 
35*52 
65*76 
£ < 
4th 
37*4 
3,497 
93*5 
1,no 
29*7 
6i-6 
0 
3rd 
47*7 
3,4io 
71-49 
1,207 
25*3 
48*35 
2nd 
48-0 
3,225 
67-19 
921 
19-19 
43*19 
ist 
15*8 
886 
55*54 
385 
24*36 
39*4° 
Total = 
= 66,427 
23,842 
