45 

 1 latifolia L. Cat tail, Reed Mace. 



u. 



406 Ulmus L. 



1 americana L. Elm. 



2 fulva Mx. Slippery Elm, Red Elm. 



407 Uniola L. 



1 spicata L. N. Haven. 



408 Uraspermum Nutt. 



1 claytoni JJjTutt. Sweet Cicely. Chaerophyllum claytoni Pers. 

 Scandix dulcis Muhl. 



409 Urtica L. 



1 canadensis L. Yellow Nettle.. 



2 dioica L. Common Nettle. 



3 pumila W. Stingless Nettle. 



4 urens L. Dwarf Stinger. 



410 Utricularia. 



1 cornuta Mx. Lcojlcss Bladder Wort. Shutesbury Pond. 



2 gibba Gron. Pittsfield. 



3 striata Le Conte. Leverett. 



4 vulgaris L. Bladder Wort. 



411 Uvularia L. 



1 perfoliata L Bell Wort. 



2 sessilifolia L. 



V. 



412 Vaccinium L. 



1 corymbosum L. Giant or Swamp Whortleberry. 



2 frondosum L. Blue Whortleberry. 



3 pennsylvanicum Lam. Black-blue Whortleberry. 



4 resinosum Ait. Black Whortleberry. 



5 stamineum L. Squaw Whortlebery. 

 G tenellum Ait. White Hills. 



7 uliginosum L. White Hills. 



413 Vallisneria L. 



1 spiralis L. Tape Grass.Sunderland ; in Connecticut River. 



414 Veratrum L. 



1 viridc Ait. Indian Poke. White Hellebore. 

 G 



