METHODS OF POLLINATION. 



The Sal'rla, 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 



I. II. 



Fig. 15.— .S'ar*'/a. T. Corolla, the bood 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 al)ortive, as we say. 

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

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



