15') 



TEUCRIUM, AJUGA. 



[chap. 



are brought down on to the back of the bee as 

 shown in Fig. 1 13. 



In 5'. pratetise the lower branch of the anther is 

 comparatively short. The different species of Salvia 

 differ indeed considerably from one another in this 

 respect. One of them, S. cleistogama, produces cleis- 

 togamous flowers, as its name denotes. 



Teucrium Scorodonia is very markedly proteran- 

 drous. When the flower first opens the stigma stands 

 behind the stamens (Fig. 117) and is not touched by 



Fig. 117. — Teucrtum Scorodonia, in the 

 first sute. 



Fig. 1x8, — Ditto, in the second state. 



the insect. Gradually, however, the stamens turn 

 backwards, and the pistil moves forwards (Fig. 118), 

 so that in older flowers, it stands where the stamens 

 stood before, and in its turn comes in contact with 

 the insect. This flower, though not conspicuous, is a 

 favourite with insects. 



In Ajuga reptans the upper lip is very short, but 

 the flowers stand close to one another, and the 

 stamens and pistil of each are protected by the 



