( 12 ) 



2. ambiguum, Nutt. Hadley, Jesuj). 



3. tenellum, Bigel. 



2. PROSERPINACA, L. 

 palustris, L. 



Order 33. ONAGRACE-ffi. 



1. CIRCLE A, Tourn. Enchanter's Nightshade. 



1. Lutetiana, L. 



2. alpina, L. 



2. EPILOBIUM, L. Willow-herb. 

 J . angustifolium, L. 



2. palustre, L., var. lineare, Gray. 



3. molle, Torr. 



4. coloratum, Muhl. 



3. (ENOTHERA, L. Evening-Primrose. 



1. biennis, L. Tree-Primrose. 



2. pumila, L. 



4. LUDWIGIA, L. 



1. alternifolia, L. Hadley. 



2. palustris, Ell. 



Order 34. MELASTOMACEiE. 



RHEXIA, L. Deer-Grass. 

 Virginica, L. Leverett, and Shutesbury. 



Order 35. LYTHRACE^J. 



1. LY THRUM, L. Purple Loosestrife. 

 Salicaria s L. Roadsides, &c. 



2. NES.ZEA, Counrners. 

 verticillata, H. B. K. Belchertown, aud Sunderland. 



Order 36. CUCURBITACE-ffi. 

 1. SICYOS, L. 

 angulatus, L. Single-Seed Cucumber. 



2. ECHINOCYSTIS, Torr. & Gray. 

 lobata, Torr. & Gray. "Wild Balsam-apple. School meadow, 

 Hadley, and Deerfield, Hitchcock. ^ 



Order 37. UMBELLIFERiE. 

 1. HYDROCOTYLE, Tourn. Marsh-Pennywort. 

 Americana, L. 



