SPERMATOPHYTA. 1 1 



SPARGANIACE^ (BUR-REED FAMILY). 



Sparganium [Tourn.] L. Bur-reed, 

 eurycarpum Engelm. 



Along streams and on the margins of ponds, common, 

 americanum Nutt, var. androcladum (Engelm.) F. and E. 



Prof. G. E. Stone. 

 angustifolium Michx. 



Prof. G. E. Stone. 

 simplex Huds. 



Southbridge. Mr. L. E. Ammidown. 

 minimum Fries. 



Lake Quinsigamond. Prof. G. E. Stone. 



NAJADACE^E (PONDWEED FAMILY). 

 Potamogeton [Tourn.] L. Pondweed. 



This genus was revised for me by the Rev. Thomas Morong, in 

 his day an authority in New England on this genus. The species 

 found since his revision are credited to the finders. 



natans L. Common in ponds and quiet streams. 



Oakesianus Robbins. Uxbridge. 



epihydrus Raf. Common in ponds and quiet streams. 

 americanus C. and S. 



Worcester. Miss E. M. Sargent. 

 pulcher Tuckerman. 



Lake Quinsigamond. Prof. G. E. Stone, 

 amplifolius Tuckerman. 



Lake Quinsigamond. 

 heterophyllus Schreb. 



Lake Quinsigamond. 



