514 Ber ridge . — The Structure of the Flower of 
No upgrowth of the apex of the flower axis to meet the ingrowing 
septa was observed in any young stages of development in Castanopsis , but 
in some hand sections of young ovaries of Quercus cerris gathered on 
January 16 such an upgrowth was found to be present. 
© 
Fig. 1. Floral diagram of Castanopsis chrysophylla. b., subtending bract of dicha 
a, /3, bracteoles of primary flower. 
Fig. 2. Cross-section of young ovary of Quercus cerris. a., apex of flower axis ; 
p placenta, x 90. 
Fig. 2 is a sketch of one of these sections, showing that this pro- 
longation of the axis is quite independent of the septa, and that the latter 
alone bear the placentae, on which young ovules are already present. 
Later the placental tissue seems to fuse with and entirely surround this 
