THE NUMBER OF STAMENS AND CARPELS. -: 243 
Rosa CANINA, Linn. 
This follows the rule that the terminal flowers carry more 
stamens and carpels than the lateral flowers. 
Taste XXI. 
Number of Stamens and Carpels in Flowers of Rosa canina 
according to Position on Axis. 
8 inflorescences Average no. | Average no. PM 
; of stamens. | of carpels. 1 carpel. 
Terminal _............... 820 | 2687 3:05 
Ist lateral ....... ee 6962 | 9035 344 
2nd , ............... 67:86 | 20:0 3:39 
The terminal flowers uniformly carried more stamens and 
carpels than the lateral flowers. 
Quercus ILEX, Linn. 
In the male catkins the basal flowers carry more stamens than 
the upper flowers: thus, in eight catkins— 
141 basal flowers carried 849 stamens—average 6:02. 
141 apical ,, » 682 , » 4:84. 
By basal flowers those uppermost in the pendulous catkins are 
implied. 
SAGITTARIA MONTEVIDENSIS, Cham. 
In the male flowers the lowest carry more stamens than the 
uppermost, as shown in Table XXII. (p. 244). 
ALISMA RANUNCULOIDES, Linn. 
In plants from Dernford Fen, near Cambridge, in all the 
inflorescences examined, the oldest carried more carpe's than the 
youngest. 
