6o 
Edith R. Saunders. 
Table showing the proportion of type and variety in each of 
the F 2 families obtained from the crossbreds by crossing hack with 
the heptandra form. 
Number of individuals 
Reference number 
Form of Union. 
in F„ families. 
of family. 
Type. 
Heptandra. 
17 
Crossbred x 
heptandra 
10 
12 4 
18 
)} 
26 1 
19 5 
19 
15 3 
8 
20 
99 
18 3 
20 
Totals 
69 
59 
A ratio of 1 : 1 would give 64 type and 64 heptandra. 
1 Including five individuals with a few abnormal flowers. 
3 Including one individual with a few abnormal flowers. 
3 Including one individual with a few abnormal flowers. 
4 Including four individuals with a few normal flowers. 
‘ Including two individuals with a few normal flowers. 
In both experiments the results obtained point to segregation 
in accordance with Mendelian principles, the numbers recorded 
lying within the range of deviation which we might reasonably 
expect from the strict ratio 3 : 1 in the one case and 1 : 1 in the 
other. 
Observations made in the course of the work on various 
characters unconnected with modifications of the corolla are 
briefly given below. 
Fasciation and torsion of the stem were of frequent occurrence 
but of very varying degree. 
Not a single case of peloria occurred among the whole number 
of plants raised. 
It was noticed that certain families included a number of 
individuals of a bright green colour in marked contrast with the usual 
grey-green of typical plants. On investigation it was found that in 
these plants the stem during the greater part of its length was hardly 
hairy at all, and that the leaves were also much less hairy than 
usual. In two out of the six families in which these smooth plants 
occurred, the parents, both F x crossbreds, had been self-fertilised, 
and in noth families the smooth plants were in excess of the hairy ; 
the numbers recorded were six hairy and twenty-three smooth, and 
five hairy and thirteen smooth respectively, or almost exactly three 
smooth to one hairy. One or other of these two F x plants had also 
