138 CARL D. LA RUE AND H. H. BARTLETT 
Table V 
Length of Capsule in Oe. Reynoldsii and Us Mutations 
Length in Mm. 
Typica 
Progeny 
No. 7 
Seiuialta 
No. 16 
Deb ill's 
No. II 
Bilonga 
from 
Debilis 
No. 23 
Bilonga 
from 
Typica : 
No. 25 
Bilon<ra 
from 
Typica : 
No. 25 
Bilonga 
from 
Typica: 
No"^s 
14-15 
7 
16-17 
38 
18-19 
86 
20-21 
6 
105 
22-23 
43 
104 
24-25 
97 
84 
26-27 
122 
51 
28-29 
94 
31 
o^^o 
0 / 
12 
32-33 
21 
21 
6 
34—35 
65 
13 
3 
36—37 
165 
2 
38-39 
260 
I 
40-41 
223 
I 
42-43 
82 
I 
44~45 
10 
0 
3 
3 
46-47 
4 
14 
5 
19 
48-49 
8 
24 
18 
42 
50-51 
49 
41 
54 
95 
52-53 
87 
72 
87 
159 
54-55 
122 
64 
91 
155 
56-57 
130 
53 
89 
142 
58-59 
141 
21 
60 
81 
60-61 
no 
II 
49 
60 
62-63 
71 
7 
31 
38 
64-65 
36 
6 
21 
27 
66-67 
18 
3 
5 
8 
68-69 
5 
•I 
6 
7 
70-71 
3 
3 
3 
72-73 
I 
0 
0 
74-75 
I 
I 
Goodspeed and Clausen^^ have questioned East's conclusions, and 
have demonstrated beyond question that the flower size does respond 
to environmental changes, but their results really strengthen the 
contention, that, as compared with changes in other parts, the flowers 
are relatively little affected. Our own conclusion in regard to the 
fruits of Oenothera is that they respond in size to varying environment, 
but that the response is relatively much less than the response in height 
of plant or size of leaves, and that the character of capsule length is 
particularly significant as a criterion of matroclinic inheritance. 
12 Goodspeed, T. H., and Clausen, R. E., Factors Influencing Flower Size in 
Nicotiana, with Special Reference to Questions of Inheritance, Amer. Journ. Bot. 2: 
332-374. 1915. 
