46 
Variation and Correlation in Umbelliferae 
a 
pi 
o 
Si 
TABLE V. C Of relation of the numher of uynhel rays of terminal umbels and lateral 
umbels of Anthriscus sylvestris. 
3 
i 
5 
6 
1 7 
Number of lateral umbels with 
S 1 9 \ 10 \ 11 \ 12 \ 13 \ 14 
umbel rays 
15 
16 
1 17 
18 
19 
Total 
number 
of 
lateral 
umbels 
Num- 
ber of 
plants 
0 
2 
6 
5 
11 
19 
13 
13 
2 
71 
9 
1 
2 
23 
27 
37 
55 
135 
119 
107 
44 
17 
1 
567 
77 
2 
3 
5 
15 
22 
43 
108 
97 
127 
73 
49 
15 
5 
562 
82 
3 
1 
3 
6 
7 
19 
30 
45 
82 
68 
30 
24 
7 
2 
3 
327 
50 
4 
1 
4 
2 
3 
8 
17 
7 
4 
3 
1 
50 
9 
5 
1 
1 
2 
5 
2 
5 
1 
1 
2 
1 
1 
22 
3 
6 
1 
3 
2 
3 
1 
1 
1 
1 
13 
2 
7 
1 
1 
1 
2 
1 
4 
2 
1 
1 
1 
1 
1 
1 
1 
1 
20 
3 
Totals 
7 
36 
55 
75 
137 
304 
279 
344 
212 
105 
47 
18 
5 
4 
2 
1 
1 
1632 
235 
i Mean of umbel rays for 235 lateral umbels =9-127. 
' S.D. of vimbel rays for 235 lateral umbels =2-150. Coefficient of correlation =0-3033. 
The mean number of umbel rays of the lateral umbels is much greater than the 
mean number of rays of the terminal umbels. For that reason terminal and lateral 
umbels were considered separately. This great difference of the average numbers 
to a certain degree accounts for the fact that the coefficient of correlation is low, 
much lower than with Pastinaca sativa. 
The second sub-division of the lateral umbels in groups belonging to plants 
with the same number of lateral umbels gives the following result: 
TABLE VI. Correlation of the number of lateral umbels fer plant and the number of umbel 
rays of lateral umbels of Anthriscus sylvestris. 
"ft 
a; 
pi 
o 
pi 
Number of lateral umbels with 
7 I <S I 9 \ 10 \ 11 \ 12 \ 13 \ 14 \ 15 
umbel rays 
16 \ 17 \ IS \ 19 
Total 
number 
Num- 
of 
ber of 
lateral 
plants 
umbels 
2 
1 
3 
1 
8 
2 
115 
23 
342 
57 
552 
79 
367 
46 
180 
20 
50 
5 
5 
G 
7 
8 
9 
10 
71 
12 
13 
3 
11 
10 
1 
5 
22 
12 
11 
9 
2 
6 
27 
23 
10 
4 
28 
41 
36 
15 
6 
1 
19 
56 
125 
55 
32 
15 
22 
61 
1 
24 
74 
98 119 
54 , 75 
36 
7 
43 
3 
23 
48 
69 
47 
17 
3 
34 
30 
22 
7 
5 
18 
8 
15 
1 
13 
Totals 
36 
75 137 
304 279 
344 
212 
105 
47 
18 
1632 
235 
