68 



POTAMOGETONACEAE 



[CH. 



FIG. 43. Potamogeton crispus, L. Advanced stage in the germination of 

 a turion (reduced). The first shoot, A, produced from the turion, T, has 

 given rise to three lateral sympodia, B, C, D. The first and second shoot- 

 generations of B have given rise to two reserve shoots, a and b. [Adapted 

 from Sauvageau, C. (1894).] 



