PIjANTS OF SOUTHERN NEW JERSEY. 159 



Middle District. — Farmingdale, New Egypt, Pemberton (C), Gloucester 

 (UP), Beaver Dam. 



Coast Strip.—Sandy Hook, Sea Girt (UP), Come (UP), Pt. Pleasant, 

 Seaside Park (UP), N. Beach Haven (L), Holgate's (L), Sherburn's (L), 

 Anglesea, Wildwood, Pleasant Mills. 



Cape May.—S. Dennis (S), Sluice Creek (S), Cape May (S). 



Family SPARjGANIACE^. Bur-reeds. 



Flowering and Fruiting Data. — The time of fruiting indicates 

 the season of fully developed intact fruiting heads. The Flowers 

 appear in June and July. 



SPARGANIUM L. 



Key to- the Species. 



a. Individual seeds sessile in the head. S. eurycarpum, p. 159 

 aa. Individual seeds stalked in the head. 



b. Inflorescence, simple. S. americanum, p. 159 



bb. Inflorescence, branched, S. a. androcladum, p. 160 



Sparganium eurycarpum Engelm. Large Bur-reed. 



Sparganium eurycarpum Engelmann, in Gray's Manual Ed. 2. 430. 1856 



[U. S. northward and westward]. — Britton 252. 

 Sparganium ramosum Barton, Fl. Phila. II. 149. 1818. 



Northern counties, extending casually to the Middle district in 

 swamps along the Delaware and coast. 



Fl. — June and July. Fr. — Mid-July to mid-September. 

 Middle District. — Delair, Camden. 

 Coast Strip. — Lake Como. 



Sparganium americanum Nutt. Slender Bur-reed. 



Sparganium americanum Nuttall, Gen. II. 203. 1818 [Vicinity of Phila- 

 delphia]. 



Swamps in the Pine Barrens, possibly more widely distributed. 



Fl. — June-July. Fr. — Late July to late Septemjber. 



While often erect, as is usual with the succeeding, this form 

 is often found floating in the more rapid Pine Barren streams, 

 the leaves being considerably elongated, but not as markedly so 

 as in S. fluctuans of the north. 



Pine Barrens. — Forked River, Bamber, Tuckerton, Parkdale (S), Bear 

 Swamp (S), Clementon. 



