J. J. Simpson 
247 
The following Table, P, gives the correlation coefficients between the I.W. A. 
and the other constituents or organs of the flower in order of position. 
TABLE P. 
/. W. A. and the other Constituents. 
Constituent or Organ 
Table 
Correlation 
0. W. Ca 
IV 
•2613 
I. W. Ca 
VIII 
•3905 
Ca. 
XII 
•4014 
Co 
XV 
•1773 
0. W. A 
XVII 
•1984 
The highest correlation between the inner whorl of the androecium and the 
other constituents or organs is that with the calyx ; next in order come the inner 
whorl of the calyx, the outer whorl of the csXyx, the outer whorl of the androecium, 
and lastly the corolla. In other words, we should be better able to predict the 
number of stamens in the inner whorl of the androecium from the number of 
members in the calyx than from the number of members in any other constituent 
or organ. 
(6) Relations between the o?'gans themselves. 
Having thus discussed the imier whorl of the androecium with the other organs 
and constituents it might lead to some useful result if we proceed to determine 
the " organic correlation " existing between the various organs themselves. In 
this connection we have to consider the calyx, the corolla and the androecium, and 
for this purpose the correlation Tables X, XIII and XVI have been prepared. 
The character which has been selected for this study is the number of members 
in each organ. 
The following Table (Q) shows the results obtained : 
TABLE Q. 
Correlation Coefficients between 
Ca. aud Co. ... 
•6926 
Ca. and A. 
■5721 
Co. and A. 
•3174 
(1) The calyx and corolla are much more highly correlated to one another than 
is either of these with the androecium. In other words, the two protective organs 
of the perianth are more highly correlated to one another than is either protective 
organ with the male reproductive organ. It is further evident that (2) the calyx 
is much more highly correlated to both the corolla and the androecium than are the 
two last named to one another. From (l)it maybe concluded that, on an average, 
