12 
STRAND. 
Name. 
Thick- 
frond. 
Thick- 
ness of 
upper 
epi- 
dermal 
wall. 
Thick- 
ness of 
lower 
epi- 
dermal 
wall. 
Chloro- 
phyll 
in epi- 
dermis. 
Hypo- 
dermis. 
Stom- 
ata per 
square 
milli- 
meter. 
Average 
length and 
width of 
stomata. 
mm. 
Davallia denticulata_ 
0.27 
2.5 
4.5 
— 
-A''? 
116 
39 x 30 
D. solida ______ 
.21 
3 
4 
- 
+ 
140 
40 x 29 
Niphobolus adnascens 
1.49 
10 
10 
- 
+ 
28 
51 x 30 
Polypodium sinuosum 
.57 
5 
7 
- 
+ 
28 
47 X 45 
Asplenium macrophyllum 
.22 
9 
6 
+ 
- 
60' 
37 X 36 
A. mussefolium 
.71 
5 
7.5 
- 
4 
26 
56 x 49 
Average 
.58 
5. 75 
6; 5 
16 f% 
831% 
36.3 
45 x 36. 5 
SALT MARSH. 
1 Achrostichum aureum 
1 
0.30 
5 
3.5 
- 
I 
220 
1 
47 x 34 
LOW JUNGLE. 
Nephrodium procurrens.. 
0. 10 
3 
2.5 
| jj -I- . 1 
_ 
107 
36 X 19 
Nephrodium (1677) _ 
.065 
2 
1 
QHl 
- 
110 
30 X 16 
Callipteris prolifera 
.14 
1.5 
1 
- 
60 
37 X 25 
Callipteris eseulenta 
.19 
2 
, 1 
H 
- 
450 
31 X 20 
Polypodium Schneideri 
.12 
3 
2 
+ 
- 
68 
46 X 30 
Average - 
12.3 
2.3 
1.5 
90% 
0 
159 
31.2 X 22 
PARANG. 
Nephrodium aridum _ 
0.10 
5 
2.5 
Trace. 
_ 
200 
32 x 17 
N. cucullatum __ 
.14 
6.5 
2 
Trace. 
— 
360 
36 x 19 
N. pteroides __ 
.10 
3 
1.5 
4 
- 
250 
27 x 18 
Nephrolepis hirsutula 
.23 
3 
3 
- 
- 
132 
45 X 26 
Pteris longifolia 
.18 
3.5 
2 
4 
— 
84 
51 X 32 
P. ensiformis 
.12 
2.5 
2.5 
4 
- 
56 
47 X 23 
Average 
.145 
3.92 
2.25 
66f% 
0 
180.3 
39.7 x 22.5 
Average for plain___ 
.135 
3.18 
1. 91 
77.3% 
0 
170.8 
35. 8 X 22. 3 
HIGH FOREST. 
A. Gorges and Other Moister Places. 
Nephrodium (1685) 
0.07 
4 
2 
' ' . 
— 
120 
40 X 19 
N. syrmaticum _ _ 
.08 
2.5 
1 
— 
400 
37 X 19 
N. setigerum — 
.12 
3 
1 
. 4 
- 
210 
33 X 26 
N. Foxii __ _ 
.10 
2 
1 
4 
— 
200 
36 x 21 
N. immersum 
.08 
1 
1 
.4 
— 
150 
28 X 19 
N. ferox _ 
.13 
4 
3 
Trace. 
- 
100 
38 x 22 
N. Bordenii (1688) 
.09 
3 
1 
-!- 
- 
225 
36 X 21 
Aspidium angulatum _ 
.11 
4 
1 
4 
- 
36 
44 x 28 
A. leuzeanum 
.12 
2 
1 
4 ■ 
— 
60 
43 x 26 
Leptochilus heteroclitus— 
. 165 
1.5 
1. 5 
1 
- 
34 
51 X 25 
Microlepia Speluncee 
.19 
4 
3 
' ' •• + 
- 
92 
60 x 30 
