116 
Inheritance in the Foxglove 
(99 of the flowers were entirely split into four pieces, while in the remaining 
three plants some 50 — 60 7o of the flowers were split. All the plants were large 
and vigorous. It was thought that very probably the character would exhibit 
Mendelian inheritance. The results of crossing and selfing are shown in the 
accompanying table. 
Inheritance of Split Corolla. 
Mid-par 
degree 
Splitt: 
o 
o 
o 
oc 
o 
o 
-t 
o 
o 
o 
1-3 
'/} 
II 
«■ 
II 
3 
.JO 
o 
05 
fM 
a 
1 — 1 
Registered 
XXXIV (.selfed) 
III 7 (selfed) 
1— 1 
X 
o 
> 
1— ( 
X 
X 
J. pi. 9 (selfed) .. 
J. pi. 18 (selfed) .. 
J. pi. 6 (selfed) .. 
J. 18 pi. 11 (selfed) 
J. 18 pi. 4 (selfed) 
J. 18 pi. 10 (selfed) 
6, 1 (selfed) 
XXIV (selfed) 
1 — 1 
X 
X 
X 
X 
O 
<o 
J. pi. 9 (selfed) .. 
J. pi. 16 (selfed) .. 
J. 16 pi. 14 (selfed) 
> 
X 
«j 
cc 
«2 
r/3 
w 
cc 
l-H 
X 
1 — 1 
K 
w 
<u 
ti 
03 
No Splitting 
2(i 
12 
8 
7 
■2 
3 
1 
0 
0 
9 
26 
12 
15 
10 
10 
Percei 
litting 
1^14 
15—29 
0 
0 
0 
0 
6 
3 
3 
0 
4 
0 
■2 
0 
1 
0 
2 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
1 
0 
. ft 
0 
0 
0 
0 
1 
1 
2 
2 
0 
0 
0 
0 
0 
0 
2 
a 
o 
£1. 
45—59 
00—74 
0 
0 
1 
2 
0 
0 
1 
1 
1 
1 
1 
3 
0 
3 
0 
2 
0 
1 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
Offs 
75—99 
1 
1 
0 
2 
5 
4 
1 
1 
3 
0 
1 
0 
0 
0 
0 
The first mentioned plant (XXXIV 4) with 90 of the flowers split was 
crossed with an unrelated plant with some 99 of the flowers split (5th vertical 
column of table). Of the 17 offspring 8 plants were wholly unsplit, while the 
remainder exhibited the character in a very greatly weakened condition. Three 
of these offspring, S. J. nos. 9, 18 and 6 having 0°/^, 13% and 18 7o of the 
flowers split respectively, were selfed, and the families raised all contained some 
plants very conspicuously split, but the character was more mai'ked in the two 
families raised from parents 18 and 6 which showed some degree of splitting. In 
a subsequent generation (S. J. 18 pi. 4 and S. J. 18 pi. 10) raised by selfing, the 
character became very strongly pronounced. 
An unrelated non-split plant (II 6, 1) was crossed with the first mentioned 
plant having at least 90°/^, of the flowers split (XXXIV 4). In the family of 
