304 
Breeding Experiments ivith Foxgloves 
(6) Pale-purple ordinary foxglove (Badock) = B (2). 
(7) Medium-purple ordinary foxglove (Badock) = B (3). 
(8) Dark-purple ordinary foxglove (Badock) = 5 (4). 
(9) Dark-purple crowned foxglove from Mr J. F. Nicolson's garden, Boshofi 
Rd; seed from Messrs Dobbie, Edinburgh = A'' (1). 
(10) Dark-purple creased lip ordinary foxglove (Nicolson) = N (2). 
These plants were variously crossed or self-fertilized so that seed-capsules of 
some 36 different pairings were obtained. Unfortunately many of the families 
were completely killed soon after germination owing to scorching by the semi- 
tropical sun of Natal. There were ultimately obtained records of the flowering 
of 188 plants, the product of 19 families. In every case the contents of one capsule 
only were sown. Sowing was done in the middle of December, 1914, and flowering 
occurred in October and November of 1915. Most of the plants grew very 
luxuriantly and the flower-axes reached a height of 4 to 5 ft. 
The following is a list of the families showing the parentage (seed-plant placed 
first) and the number of plants which flowered. Except where indicated the pollen 
was taken from the ordinary zygomorphic flowers : 
I A 
A (self-fertilized) ... 
35 
XI 
AxC{S) 
. 17 
I 
C'(l) (self-fertihzed) 
7 
XII 
C{3)xA* . 
1 
II 
C'(l)x5(4) ... 
8 
XIV 
AxC{2) 
. 14 
III 
5(4)xC'(l) 
5 
XV 
C{2)xA* . 
. 8 
IV 
B{i) (self-fertihzed) 
5 
XV A 
Ax C{2) 
. 7 
V 
C{l)xB{3) 
23 
XV B 
(7(2) x^t . 
. 1 
VIII 
C(l)xC(2) 
10 
XXIV 
Ax B{4:) 
. 13 
IX 
C(2)xC'(l) 
10 
XXV 
B{4:)xA-\- . 
. 6 
IX A 
C'(l)xiV(2) ... 
4 
XXIX 
Ax N (1) . 
.. 3 
X 
C (2) (self-fertilized) 
11 
All the families except I a were grown in beds on a piece of land close to the 
Natal Museum. I a plants were raised in different private gardens of Pieter- 
maritzburg. 
II. The Inheritance of certain Characters. 
The characters dealt with are: 
(1) The possession of a crown or a terminal peloric flower at the top of the 
flower-axis. 
(2) The presence of brown spots in place of dark-purple spots on the lower 
inside surface of the ordinary zygomorphic flower. 
(3) The amount of spotting on the lower inside surface of the ordinary flower, 
expressed as the percentage of area of this surface covered by the spots. 
* Pollen from crown flower. 
■j" Pollen from terminal crown flower of side flower-axis. 
