822 
Breeding Experiments ivith Foxgloves 
The means of the coetiicients of the three characters are -46 and •'il for 
the parental and fraternal correlation respectively. These results are not very 
divergent from those obtained by Prof. Pearson from very various sources ; he 
gives the average parental correlation as about -48. 
V. Summary. 
The data at present available were derived from crossing in various ways 
10 cultivated foxglove plants with different characteristics, namely: crowned or 
peloric, not crowned, purple of different intensities, white, relatively wide and 
relatively narrow corolla, etc. There were 19 families; each family being raised 
from the seed of a single capsule. Altogether 188 offspring which flowered were 
obtained. 
The nature of the inheritance of the following characters was studied: (1) 
peloric or crown character, (2) the colour of the spots, (3) the relative area covered 
by the spots, (4) the colour of the corolla and the degree of intensity of the purple 
colouration of the general surface, (5) the ratio of the width to the length of the 
corolla. 
The numerical results obtained are given below: 
Mendelian Inheritance 
(parent and offspring) 
Statistical Relationship 
(parent and offspring) 
Observed 
Theoretical 
Expectation 
Coefficient of Correlation 
Character 
Foxgloves 
Mean of 
coeffi- 
No. with 
character 
present 
No. witli 
character 
absent 
No. with 
character 
present 
No. with 
character 
absent 
Including 
self -fertilized 
families 
Excluding 
sclf-fertUized 
families 
cients 
from 
various 
sources 
Crown 
83 
104 
83 
104 
Brown spots 
23 
69 
23 
69 
Percentage area covered by 
spots 
■43 
•32 
General purple colouration 
41 
139 
49 
131 
•47 
•41 
•45 
Ratio of breadth to length 
of corolla 
•34 
•30 
•41 
•34 
Totals 
147 
312 
155 
304 
•38 
(1) The peloric character may be regarded as arising by the suppression of 
certain internodes of the flower-axis and the concttrrent fusion of the flower-buds 
resulting in a more or less regular cup or saucer-shaped flower at the top of the 
