XXII. NAIADES. 



809 



Zostera marina. 

 Fructiferous spathe. 



Caulima. 

 Dehiscent peri- 

 carp -without the 

 seed (mag.). 



PhucagrosUs mc0or. 

 j plant. (Bomet.) 



Zostera marina. 

 CauHnia. Seed (mag.). CauUnia. Embryo (mag.). Upper end of spatbe. 



