408 



Symplocarpus, Salisb. Skunk Cabbage, 

 foetidus, Salisb. 



AcoRus, Linn. Sweet Flag. 

 calamus, Linn. 



LEMNACE^E. The Duckweed Family. 



Lemna, Linn. Duckweed. 



minor, Linn, 

 trisulca, Linn. 



TYPHACE^. The Cat -Tail Family. 



Typha, Tourn. Cat-Tail, 

 latifolia, Linn. 



Sparganium, Tourn. 



ramosum, Hudson. 



natans, Linn. St. Croix, Dr. Parry. 



NAIDACEtE. The Pondweed Family. 



Potamogeton, Tourn. Pondweed. 



amplifolius, Tuckerman. 



perfoliatu?, Linn. 



compressus, Linn. P. zosterifolius, Sebum. 



pauciflorus, Pursb. P. gramineus, Mx. 



pectinalus, Linn. 



heteropbyllns, Scbreber. 



ALISMACE^. The Water Plantain Family. 



§ 1. Juncaginece. 

 Triglochin, Linn, 

 elatum, Nutt. 



ScHEUcnzERiA, Linn, 

 palustris, Linn, 



§ 2. AUsmece. 

 Alisma, Line. Water Plantain. 

 Plantago, Linn. 



EcHiNODORUs, Ricbard. 



subulatus, Engleman. St. Croix, Dr, Parry. 



Saqittaria, Linn. 



sagittifolia, Linn. Arrow-Leaf. 



