Ficaria verna, and other Members of the Ranuneulaceae . 69 
Between perianth segments and stamens the correlation coefficient is c-x 6 
and the probable error 0-055. Complete or partial abortion of the male 
or female organs, accompanied by increase of those of the other sex, may 
occur in this and other species (cf. Elmore, 1915). 
Table VII. 
A nemone nemorosa. 
Number of 
Number of 
Number of 
Stamens . 
Branched Stamens. 
Anthers. 
54 
1 
55 
5t 
1 
55 
54 
1 
55 
42 
2 
44 
59 
1 
60 
59 
2 
61 
Transitions are rare, but the sepals sometimes 
develop laminae, in which case the apical region is 
lobed and green, suggesting that here, as in Ficaria , 
the sepal merely represents the basal region of the 
bract or foliage leaf of which it is the derivative 
(cf. Baillon, 1863, p. 2, and Salisbury, 1916, p. 526, 
Fig. 1). 
In eleven flowers, or about 6-5 per cent, of 
the total, all the floral whorls consisted of some 
multiple of three, the details of which are given 
below (Table VIII). 
Table VIII. 
Anemone nemorosa . 
Perianth 
Segments. 
Stamens . 
Carpels. 
Number of 
Specimens. 
6 
4 2 
15 
1 
6 
42 
18 
1 
6 
45 
15 
1 
6 
54 
15 
2 
6 
54 
1 8 
1 
6 
54 
21 
1 
6 
60 
2 7 
* 1 
6 
63 
27 
2 
6 
93 
33 
1 
As there were fifty-eight flowers with stamens 
numbering some multiple of three, the calculated 
probability is that about nineteen of these should 
possess carpels numbering some multiple of three ; 
in actual fact there were no less than twenty-five 
such cases. 
Fig. 16. a, diagram 
of perianth of A. nemorosa ; 
B, floral diagram of Aconi~ 
turn napellus ; c, branched 
stamen of Aquilegia sp. ; 
D and E, branched stamens 
of Delphinium sp. ; F, dia- 
gram of perianth of Ranun- 
culus bulbosus. 
