1924] 
HARRIS—THE INFLORESCENCE OF MANFREDA VIRGINICA 451 
lations are, however, of a very low order. Those for actual 
position and the number of seeds range from — 0.078 to — 0.123. 
Those for relative position and number 
of seeds range from 
— 0.050 to — 0.123. А comparison of the correlations between 
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Fig. 11. Regression of number of seeds per locule on actual position of the fruit. 
Circles = Meramec Highlands, solid dots = Jefferson Barracks. The lower figure 
gives the results for 1906, the upper figure those for 1907. 
the relative position and number of seeds, and actual position and 
number of seeds shows that in one case the former and in 3 cases 
the latter is the larger. No one of these differences 1s significant 
in comparison with the 
probable error of the determination. 
Thus it is impossible to assert on the basis of the materials now 
