ГУ оз. 11 
448 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
In Celastrus (Harris, '09) the correlation between both number 
of flowers and number of fruits per inflorescence, on the one 
hand, and number of seeds per fruit, on the other, are very low. 
The actual constants are: 
For number of flowers and number of seeds, r = + .033 + .013. 
For number of fruits and number of seeds, r = — .012 + .013. 
The inflorescence and fruit of Staphylea has been rather ex- 
haustively studied. It has been shown (Harris, '12b) that the 
average values of the correlation coefficients for a series of 20 
shrubs studied at the Missouri Botanical Garden in 1906 are: 
For fruits per inflorescence and ovules per locule, 
т = .0192 + .0185. 
For fruits per inflorescence and seeds per locule, 
: т = — .0899 + .0080. 
For general samples of fruits, comprising the collections from 
all the shrubs, the correlations have been shown to be: 
Year of Number of Fruits and Fruits and 
collection locules ovules, туо seeds, 7у; 
1906 6177 +.0391 + .0086 —.0474 +.0086 
1908 12099 .0633 +.0061 —.0494 4-.0061 
Two of the coefficients are negative. The correlation between 
the number of fruits per inflorescence and length of fruit in 
Staphylea has been found (Harris, 712) to be of the order r = 
— .1828 -- .0144. 
For Crinum longifolium (Harris, ’12 а) the correlation between 
the number of fruits per inflorescence and number of seeds per 
fruit is r = — .072 + .024. 
5. THE RELATIONSHIP BETWEEN THE ACTUAL AND THE RELA- 
TIVE POSITION OF THE FRUIT ON THE INFLORESCENCE 
AND THE NUMBER OF SEEDS PRODUCED 
The proportion of the ovaries which develop into fruits at dif- 
ferent positions on the inflorescence axis has already been dis- 
cussed (p. 425). 
In considering the influence of position on the inflorescence upon 
the development of the fruit, the only measure of position which 
requires consideration is that furnished by the position of the 
