1924 
HARRIS—THE INFLORESCENCE OF MANFREDA VIPGINICA 440 
flower. When we turn to the problem of the influence of position 
upon the development of theseed, it is clear that either the position 
of the flower on the axis or the position of the matured fruits in 
the series of fruits may be taken as a measure of position. Рові- 
tion in the latter case may be either the actual position which the 
matured ovary occupies in the series of flowers on the inflorescence 
or it may be the position which a fruit occupies in the series of 
fruits matured. For example, if the third flower from the 
proximal end of the inflorescence develops into a fruit it will be 
recorded as occupying the third position in the series of flowers. 
But if the first 2 flowers fail to develop it will occupy the first 
position in the series of fruits. 
The first of these may be designated as the actual position of 
the fruit, the second as the relative position of the fruit.! 
The total number of flowers, the total number of fruits, and the 
total number of seeds produced at each (actual) position on the 
inflorescence are shown for the 4 series of materials in which the 
number of seeds was determined in table x. From this table 
the correlations between actual position and number of seeds per 
locule, set forth in table xx, have been deduced. 
Тһе correlation between the relative position of the fruit and 
number of seeds per locule or per fruit may be deduced from the 
eondensed correlation table xxr, in which the position of the 
fruit, the number of locules, and total number of seeds produced 
by those locules are shown for the 4 series of material in which 
number of seeds was determined.* 
The relationship between the actual position of the fruit and 
the number of seeds matured per locule and that between the 
relative position of the fruit and the number of seeds matured per 
locule are laid side by side in table xx. These coefficients are, 
without exception, negative in sign. Thus the number of seeds 
! Since in correlations between position on the inflorescence and number of seeds 
per locule or per fruit the position must be weighted with the number of fruits 
counted, the weighted constants are necessary. These may be deduced from the 
tables of data, but, since they are needed only for the correlations, are not tabled 
ere. г 
2 The correlation between the relative position and total seeds per fruit may be 
determined from this table by substituting the number of fruits for the number of 
locules and the means and the standard deviations of number of seeds per fruit 
for number of seeds per locule. 
