110 
Inheritame in the Foxglove 
I 
In the accompanying table the results of some instructive crossings and self- 
fertilisations are given. In Series I two dominants {E and F) of different colour- 
intensities were selfed and the families raised showed that the parents were homo- 
zygous. On crossing {E) and {F) a family of intermediate offspring was obtained. 
Colour- Intensity — Various Pairings. 
No. of 
Series 
Gametic 
Con- 
stitution 
Parentagp 
Colour- Scale— 
Offspring 
Mean of 
Coloured 
Offspring 
Mid- 
Parental 
Colour 
Coloured plants 
to 
M 
CO 
o 
f 
to 
*s 
CD 
Oi 
i 
o 
CO 
00 
o 
r 
CD 
*S 
C 
r 
CD 
o 
I" 
*% 
r 
*^ 
CD 
to 
O 
r 
w 
i" 
CD 
o 
r 
I 
DDxDD 
DD X DD 
DDxDD 
DDxDD 
DDxDD 
£■ (selfed) 
F (selfed) 
9^x6F 
{ExF) pi. 16 (selfed) ... 
\e X F) \± Q ... 
90 
08 
79 
61 



— 

2 
— 
— 
— 
— 

0 
— 
— 
2 
— 
5 
— 
4 
6 
— 

8 
6 
3 
2 
1 
3 
5 
— 
10 



1 


— 
— 
— 
— 





— 
83 
64 
71 
87 
56 
11 
DDx RR 
DR X DR 
$^Xc? (White) 
A' X (White) pi. 18 (selfed) 

45 
71 

— 
— 
1 
1 
11 
5 
1 
1 
4 
1 
2 
1 
— 
— 
2 
- 
60 
66 
1 1 1 
DJJ X DJJ 
f \ 71 ^ ly Ti 
UD X /l/l 
DR X DR 
lilt.. 1 \ 1 1 
DR X DH 
u t^seiicii^ . . . ... ... 
O R\i J: /WTnTF") 
Y-L>X(^ t^vvrlillli^ ... 
{B X White) pi. 1 (selfed) 
( Z> X VV HiiJttjy pi. O ^weiicuy 
95 
47 
80 
32 
3 
3 
2 
1 
0 
2 
3 
1 
6 
4 
1 
1 
4 
2 
1 
2 
1 
3 


5 
102 
59 
64 
31 
l\' 
DD X DD 
DR X DR 
DD X DR 
DDxDD 
DDxDD 
7? (selfed) 
A (selfed) 
?5xc?.l 
(5 x^) pi. 7 (selfed) ... 
(5 xyl) pi. 2 (selfed) ... 
95 
70 
82 
130 
65 
0 
0 
1 
2 
1 
3 
3 
4 
4 
12 
2 
6 
12 
4 
13 
13 
1 
4 
2 
12 
1 
7 
102 
70 
105 
87 
67 
DD X DD 
B (selfed) 
95 
3 
0 
2 
3 
6 
1 
102 
DR X DR 
(• (selfed) 
34 
2 
1 
9 
2 
4 
40 
DD X DR 
^BxSC 
65 
4 
2 
53 
50 
DD X DD 
(/;x 6') pi. 8 (selfed) 
50 
2 
1 
DDxDD 
pi. 4 
50 
4 
17 
3 
59 
DD X DD 
I'l- ' 
58 
5 
6 
4 
1 
1 
60' 
nn X DD 
pi. 6 
68 
14 
9 
54 
DDx DD 
Pl- 1 
70 
2 
4 
20 
4 
74 
Two of these offspring were selected, {E x F) pis. 16 and 9, as widely divergent 
from each other as possible, and selfed. In the families obtained there was no 
tendency for the occurrence of segregation into the two colour-intensities of {E) 
and {F) respectively. There was thus a definite blend, and the means of the two 
families approached the respective colour-intensities of the two self-fertilised 
plants. 
In Series II the same homozygous dominant plant {E), with colour-intensity of 
90", was crossed with a white plant and all the offspring were heterozygous and 
intermediate. On selling one of the darker coloured offspring, no. 18, the dominant 
plants raised tended to be of about the same colour-intensity as the grandparent 
