148 Lussojys with plants 



look inward (towards the pistil), or are said to 

 be introrse; those of the lily look outwards, or 

 are extrorse. The pupil should determine if innate 

 and adnate anthers differ in this regard, also. 



Fis. 151. Pig. 152. Fig. 153. 



Flower of scarlet sage. Carnation flower. Tell-tale flower of hepatica. 



164. The anthers of the mustard and the tulip 

 seem to open along the side of each locule. The 

 azalea, however (Fig. 149), opens by a hole or 

 pore in the tip of the locule. Heaths and huckle- 

 berries open in the same way. We should examine 



