442 Miscellanea 
TABLE II. 
Rohinia Pseudacacia. 
Seeds per Pod. 
2 1 3 
4 
5 
6' 
7 
8 
.9 
10 
11 
12 
13 
14 1 
1 
15 
16 
17 
IS 
19 
Totals 
f, 
1 
1 
— 
2 
1 
1 
3 
2 
4 
11 
s 
1 
5 
4 
8 
4 
6 
2 
30 
:> 
9 
9 
28 
15 
7 
19 
6 
10 
103 
1(1 
6 
33 
27 
38 
38 
23 
17 
12 
5 
199 
11 
5 
25 
36 
39 
34 
41 
36 
12 
11 
6 
245 
1£ 
3 
16 
35 
33 
39 
32 
36 
19 
21 
15 
9 
258 
13 
2 
8 
14 
17 
31 
28 
33 
23 
19 
20 
10 
10 
~ 
215 
U 
1 
1 
4 
4 
8 
10 
15 
12 
23 
14 
18 
9 
16 
135 
15 
1 
1 
3 
1 
3 
8 
6 
12 
18 
14 
15 
8 
9 
99 
16 
1 
2 
3 
4 
9 
14 
7 
8 
9 
14 
71 
17 
2 
1 
1 
1 
3 
2 
4 
4 
5 
9 
32 
18 
1 
3 
2 
1 
1 
1 
3 
2 
6 
20 
19 
2 
1 
1 
2 
7 
Totals 
29 
100 
152 
161 
168 
162 
155 
98 
97 
88 
69 
44 
38 
23 
22 
12 
7 
2 
1427 
TABLE III 
Cercis Canadensis. 
Seeds per Pod. 
i 
3 
3 
5 
6 
7 
8 
Totals 
0 
3 
31 
34 
Ph 
3 
34 
176 
300 
510 
u 
37 
226 
885 
1093 
2241 
5 
17 
71 
310 
784 
1040 
2222 
tn 
6 
4 
14 
54 
153 
288 
375 
888 
7 
1 
4 
9 
15 
33 
39 
101 
> 
8 
1 
1 
2 
4 
Totals 
95 
519 
1553 
2040 
1343 
409 
39 
2 
6000 
Rlustration 1 V. Correlation between the number of flowers per inflorescence and the number 
of synanthous flowers in Spiraea Van Houtii. 
" Excess of nutrition " has been the explanation offered hundreds of times for plant ab- 
normalities. It seems desirable, therefore, to try to correlate the presence of abnormalities 
with the magnitude of other organs of the plant in order to see whether they are more frequent 
in cases in which the organs of the individual have reached an abnormal size. An example 
of this kind of problem is taken from my notes on abnormalities in the inflorescence of the 
garden species, Spiraea Van Houtii. 
The particular abnormality here considered is that frequently designated as synanthy in 
teratological literature. In the inflorescence of this species the pedicels of two or more flowers 
are frequently found fused for their entire length. The flowers themselves may have a more or 
less common receptacle, but the essential floral organs are usually so distinct that they would be 
counted as belonging to two flowers. The details of the abnormalities do not concern us here, 
and will be discussed in due time. The essential question which we wish to answer on the 
