Chap. IV. 



LYTHRUM SALICAEIA. 



139 



Fig. 10. 



Long- 

 Btjled. 



Diagiam of the flowers of the three forms of lA/thrum talicaria, in 

 their natural position, with the petals and calyx removed on the near 

 side : enlarged six times. 



The dotted lines with the arrows show the directions in which 

 pollen must he carried to each stigma to ensure full fertility. 



