Ernest Warren 
115 
In the accompanying table it is useless to include families in which there was 
no taint of whiteness, since all the individuals (except 4 plants out of 2500) had 
purple spots. 
Bi^oivn Spots — Families White or Some Taint of Whiteness. 
rrfl.mpt'.ip ^nf.nrp 
of 
Pairings 
1.1 Li 1 1-1 UXdL 
of 
Families 
iri \JLLLi UUi 
of 
Offspring 
Purple Spotted 
Brown Spotted 
Experimental 
Mendelian 
Expectation 
Experimental 
Mendelian 
Expectation 
DD X DD 
RR X RR 
DR X DR 
DR X DD 
DR X RR 
DD X RR 
13 
11 
13 
15 
1 
6 
344 
169 
213 
137 
8 
70 
344 
0 
166 
137 
3 
70 
344 
0 
160 
137 
4 
70 
0 
169 
47 
0 
5 
0 
0 
169 
53 
0 
4 
0 
Totals 
59 
941 
720 
715 
221 
226 
It is obvious from the table that the brown spotted condition exhibits Men- 
delian inheritance. 
4. Inheritance of Certain Sport Abnormalities. 
Crenate Margin. — In a homogeneous family of 29 plants there appeared one 
plant in which the free edge of the mouth of the flower exhibited a well-marked 
serrated condition. All the flowers of a main-axis of considerable size were, 
similarly affected, and later, lateral flowering axes were formed, and the flowers 
were also serrate. The character was sufficiently marked to be noticeable at a 
casual glance of the plant, and since all the numerous flowers were alike in this 
particular, the character was clearly inherent in the plant, and was not due to a 
chance environmental disturbance influencing a young growing axis or certain 
flower-buds. The plant was self-fertilised, and it was confidently expected that 
the character would reappear in the offspring. Out of a family of some 20 plants 
12 flowered and no sign of the peculiar serrated condition could be detected in 
any one of the plants. Here we have a conspicuous chai'acter in a large healthy 
plant affecting every flower of all the flowering axes, and yet apparently it was 
incapable of being transmitted to the offspring. 
Sjilit Corolla. — In a homogeneous family (XXXIV) of 27 plants there appeared 
one plant in which in the great majority of the numerous flowers the corolla was 
symmetrically divided into an upper, a lower and two lateral pieces by four lateral 
splits extending down to the base of the flower. The plant was a large, healthy 
one and produced a number of similar lateral axes. At least 90 "/^ of the flowers 
were completely split (PI. I, fig. 10). 
In a family (VIII 7) unrelated to the above there were 16 plants, and of 
these, four plants were similarly affected. In one of these plants practically all 
H— 2 
