16 Harris . Observations on the Physiology of Seed Development in Staj^hylea. 
dependent upon either position on the inflorescence or number of 
fruits developing per inflorescence. There is a slig'ht negative 
correlation for number of fruits and number of seeds developing', 
but position on the inflorescence seems to have no sensible in- 
fluence on the capacity of the fruit for maturing its seeds. 
4. The results set forth here, taken in connection with others 
to which reference has been made, show that fertility and fe- 
cundity are not always so easily influenced by the character of 
the inflorescence or by the position of the fruit on the inflorescence 
as might have been a priori expected. Only where we have 
large and diverse series of quantitative data for comparative study 
shall we be able to speak in general terms of the factors under- 
lying the development of the ovules of an ovary into seeds. 
