Bickett—The Larger Aquatic Plants of Lake Mendota. 525 
table ll 
Cladophora, Type A 
Sample 
Weight 
Covered 
Area of Rock 
Station 
Wet 
Dry 
1 ... 
245 
36.5 
0.05 
1 
2 ...... ... . 
440 
44.1 
0.20 
1 
3... 
60 
7.2 
0.04 
1 
4. 
50 
8.8 
0.08 
1 
5......... 
30 
12.0 
0.08 
1 
6 ..... 
120 
18.2 
0.05 
1 
7. 
90 
21.2 
0.38 
1 
8 ... 
25 
6.7 
0.06 
41 
9. 
130 
(16.4) 
0.08 
41 
10 ..... 
65 
(8.2) 
0.08 
41 
11 ..... 
65 
13.5 
0.04 
41 
12 ........ 
45 
3.4 
0.36 
34 
13.... 
75 
14.4 
0.13 
34 
14. 
55 
7.4 
0.49 
34 
15. 
20 
3.1 
0.08 
34 
16..... 
70 
9.4 
0.14 
34 
17...... 
20 
(2.5) 
0.04 
34 
18. 
20 
2.6 
0.04 
34 
19... 
15 
1.7 
0.06 
34 
30..... 
15 
1.8 
0.02 
1 
31..... 
20 
(2.5) 
0.04 
1 
32. 
15 
2.0 
0.06 
1 
33. 
50 
3.5 
0.02 
1 
Total. 
1,770 
247.1 
2.62 
Weight per sq. m. rock surface 
675 
94.3 
Weight per sq. m. ground sur¬ 
face .. 
1,350 
188.6 
Total area .. 
31,400 
Total weight . 
42,500 
I 6,000 
Numbers in parentheses are calculated on the basis of the percentage of water (table 3). 
Areas are recorded in square meters, weights ini grams, except total weight which is in 
kilograms. 
