Harris, Observations on the Physiology of Seed Development in Staphylea. H 
for the twenty shrubs of the 1906 series are presented in the 
combination Table IX. Table 2 gives the constants. 
For r ps fifteen of the coefficients are negative in sign. Only 
two deviate niore than + . 100 from 0, and the greatest is . 128. 
So far as the magnitude of the individual constants is concerned, 
there is little reason to suspect a correlation between p and s. 
Table IX. 
Combination Table showing the Correlation between the Position of 
the Fruit on the infiorescence and the number of Seeds per Locule 
for twenty individual Shrubs. 
c/ 
Shrub 
• 
0 
1 
2 
3 
4 
5 
6 
1 
2 
3 4 5 
1 
2 
3 
4 
5 
1 
2 
3 
4 
5 
i 
2 
3 4 
1 
2 
3 
4 
1 
2 
3 
4 
11 
73 
65 
34 4 — 
60 43 
20 
4 
14 
5 
2 
1 
_ 
3 
i 
1 — 
_ 
_ 
_ 
_ 
_ 
12 
118 
70 
14 4 - 
72 46 
10 
2 
— 
11 
10 
— 
— 
— 
10 
— — 
2 
— 
— 
— 
— 
— 
13 
60 
52 
15 2 — 
68 33 
9 
2 
27 
11 
3 
1 
14 
4 
— — 
4 
1 
— 
1 
1 
1 
— 
— 
14 
77 
60 
14 - — 
60 39 
8 
— 
— 
21 
10 
5 
3 
1 
- - 
1 
1 
— 
— 
— 
15 
85 
65 
34 2 2 
49 34 
18 
1 
11 
9 
5 
1 
2 
2 
1 
— 
1 
— 
— 
— 
— 
— 
16 
88 
54 
18 4 1 
50 41 
14 
1 
2 
11 
2 
5 
1 
4 
2 
2 — 
— 
• 
— 
— 
— 
— 
— 
17 
92 
57 
13!— — 
68 29 
10 
— 
— 
16 
10 
3 
— 
— 
3 
— 
1'— 
1 
— 
— 
— 
— 
18 
70 
74 
28 — - 
38 42 
20 
— 
— 
7 
8 
7 
— 
— 
2 
1 
2 — 
— 
1 
— 
— 
— 
— 
— 
— 
19 
8861 
17 2- 
45 
50 
18 
1 
— 
8 
2 
3 
— 
— 
2 
1 
1 — 
1 
— 
— 
— 
— 
20 
7543 
15! 1 - 
52 
40 
19 
2 
29 
13 
6 
1 
— 
7 
6 
5 2 
4 
— 
— 
— 
4 
— 
— 
— 
21 
21 22 
14 7 — 
34 
43 
18 
8 
36 
20 
12 
4 
— 
10 
16 
5 5 
10 
5 
5 
— 
3 
2 
— 
— 
22 
7549 
19 1 - 
61 
27 
16 
2 
19 
10 
8 
— 
8 
4 
2 - 
2 
3 
— 
— 
— 
23 
9156 
13 — — 
65 
35 
14 
— 
13 
7 
3 
— 
— 
2 
1 
— — 
— 
— 
24 
7844 
18 31— 
53 
27 
12 
2 
— 
30 
12 
5 
— 
9 
1 
3 — 
1 
— 
1 
1 
— 
— 
— 
25 
60 
44 
30 4 - 
48 39 
16 
2 
16 
12 
4 
2 
7 
5 
3- 
3 
1 
1 
1 
1 
1 
26 
78 
48 
27 7 2 
58 33 
13 
3 
1 
8 
7 
2 
2 
4 
5 
| 
1 
— 
1 
— 
— 
27 
74 
59 
19 4 — 
68j30 
13 
2 
— 
13 
7 
4 
— 
5 
— 
1 
— 
— 
— 
1 
— 
—■ 
28 
86 
46 
10 ! 4 - 
64,36 
8 
4 
25 
12 
2 
9 
5 
1 1 
2 
— 
— 
29 
77 52 
24 5 - 
51 23 
12 
3 
22 
11 
3 
— 
6 
4 
2 1 
— 
3 
1 
— 
— 
30 
67 
55 28 2 — 
45 43 
17 
1 
18 
12 
6 
— 
— 
5 
1 
! 
— 
— 
— 
— 
And such a deviation as 5 plus to 15 minus from the expected 
10 :10 for signs is not very remarkable. 
The average for the twenty constants is — . 0310 + . 0088, 
from which we see that the coefficient is only 3.89 times its 
probable error and hence hardly statistically trustworthy. 
Comparing the average relationship between position and 
number of ovules per locule calculated for these same twenty in- 
dividuals and published elsewhere, we find: 
Position and Ovules, Mean r — — . 0733 + . 0177. 
Position and Seeds, Mean r — — . 0310 + . 0088. 
. 0423 ± . 0197. 
If any importance is to be attached to these constants, the 
number of ovules is more influenced by position on the infiorescence 
than the number of seeds developing. A priori, I would have 
expected the reverse, but we are treading entirely too near the 
