Notes. 
190 
In all but two of these 4-carpelled flowers the angle ACB was 
measured (see Fig. 1, Diagram III), the middle of sepal 4 being one fixed 
point, the near limit of carpel I being the other. It was found that 
in 84 cases the limit of the carpel extended beyond the middle of 
sepal 4 ; and in no case was carpel I superposed exactly to sepal I. 
The average result is indicated in Diagram III, where it is shown that 
the ultimate position of this carpel is over the petal the next in the 
direction of the spiral to sepal I. The average size of the angle ACB 
proved to be 14 0 ; the greatest angles measured were 6i°, 29 0 , 28°, 27° 
and so on; the least were — 16 0 , —5° and — 2 0 , being the three cases 
in which the limit of the carpel did not extend beyond the middle 
of sepal 4. 
It is not to be assumed that carpel I is always the largest. This 
is not so, as the following table indicates : — 
Table IV. 
Number of cases in which the various carpels were relatively large or small 
among \-carpelled fruits . 
No. of 
Carpel. 
Largest. 
2nd. 
3 rd. 
Least. 
I. 
69 
13 
5 
2 
II. 
13 
37 
28 
11 
III. 
5 
26 
29 
29 
IV. 
5 
26 
39 
Turning now to 3-carpelled fruits, the following figures were 
obtained, and the following measurements of the angle BCD (see 
Diagram IV) which was measured instead of the angle A CB. 
