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Class II. MONOCOTYLEDONOUS or 

 ENDOGENOUS PLANTS. 



Order 83. ARACE-ffi. 

 1. ARISiEMA, Mart. 



1. triphyllum, Torr. Indian Turnip. 



2. Dracontium, Scbott. Green Dragon. Deerfield, Belchertown, <fce. 



2. PELTANDRA, Raf. 

 Virginica, Baf. Belchertown. 



3. CALL A, L. 



palustris, L. 



4. SYMPLOCARPTJS, Salisb. 

 foetidus, Salisb. Skunk's Cabbage. 



5. ORONTIUM, L. 

 aquaticum, L. Golden Club. Hampton Pond, Tuckerman. 

 Southwick, Porter. 



6. ACORUS, L. 

 Calamus, L. Sweet Flag. 



1. trisulca, L. 



2. minor, L. 



3. polyrrhiza, L. 



Order 84. LEMNACE-ffi. 

 LEMNA, L. Duckweed. 



Order 83. TYPHACE^E. 

 1. TYPHA, Tourn. 

 latifolia, L. Cat's-tail. 



2. SPARGANIUM, Tourn. Bur-reed. 

 simplex, Huds. 



Order 86. NAIAD ACE^S. 



1. NAIAS, L. 

 flexilis, Bostk. 



2. POTAMOGETON, Tourn. Pondweed. 



1. natans, L. 



2. Oakesianus, Bobbins. 



3. Claytonii, Tuckerm. 



4. Spirillus, Tuckerm. 



5. hybridus, Michx. 



6. rufescens, Scbrad. 



