METHODS OF POLLINATION. 27 



The Sal' via, or Sage, of which there are several 

 kinds occurring in South Africa, has a more wonderful 

 contrivance still. Fig. 15 (I. and II.) will explain 

 it. There is a large lip to the corolla which supplies 

 the landing-place for a bee. Then the stamens, of 

 which there are only two perfect, together with the 

 style, are concealed under the hood at the back (II. ; 

 this hood is removed in I.). To understand the 

 structure of the stamens, the first thing to note is 



n. 



Fig. Ib.Sal'via. I. Corolla, the hood removed. II. Ditto with bee. 



that the very short filament seen arising from the 

 front part of the corolla-tube springs from the tube 

 to which it is " coherent." At the upper end of the 

 filament is a curved rod bearing one anther- cell at 

 the top, while the other is at the bottom ; hence 

 the curved rod is really the " connective." The bottom 

 anther- cell has no pollen, or is abortive, as we say. 

 Now, the rod-like connective swings up and down on 

 a sort of pivot, where it is attached to the filament ; 



