1 62 REPORT OF NEW JERSEY STATE MUSEUM. 



aaa. Leaves ribbon-like, obtuse at the apex, 3-18 dm. long, 2-S mm. wide, 

 all submerged, branching marine plants from bays, etc., along the coast. 



Zostera marina, p. 166 



POTAMOGETON L. 



Potamogeton oakeslanus Robbins.* Oakes' Pondweed. 



Potamogeton oakesianus Robbins, in Gray's Manual, Ed. 5. 485. 1867 [Eastern 

 Massachusetts].— Gross, Bull. Torrey Bot. Club XL 32. 1884.— Britton 

 257. — Keller and Brown 22. 



Ponds in the Pine Barrens and Cape May peninsula and at 

 Tenafly, Bergen Co. (Britton) ; apparently rare. 

 Pr. — Apparently mid-July to mid-September. 



Pine Barrens.— Browns Mills (NB), Hospitality Br. 12th St., Estelville 

 (NB), Folsom, Mays Landing (T). 

 Cape Moj).— Dennisville (OHB), Town Bank (OHB). 



Potamogeton amplifolius Tuekerm. Leafy Pondweed. 



Potamogeton amplifolius Tuckerman, Am. Jour. Sci. (IL) 6. 225. 1848 

 [Cambridge, Mass.]. — Britton 257. — Keller and Brown 22. 



Ponds and rivers of northern New Jersey extending into the 



Middle district along the Delaware. 



Middle District. — Cooper's Creek, Burlington. 



Potamogeton pulcher Tuekerm. Spotted Pondweed. 



Potamogeton pulcher Tuckerman, Am. Jour. Sci. XLV. 38. 1843 [Medford 

 and Stoneham, Mass.]. — Willis 60. — Britton 257. — Keller and Brown 22. 



Ponds and streams of the Middle and Coast districts to Cape 

 May. 



Pr. — ^Eate June to late July (apparently). 



Middle District. — Repaupo, Center Square, Elmer (P). 

 Coast Strip. — Toms River (C), Atlantic City, Anglesea. 

 Cape Moy.— Cape May, Cold Spring. 



Potamogeton epihydrus Raf. Nuttall's Pondweed. 



Potamogeton epihydrus Rafinesque, Med. Repos. IL 5. 354. 1808. [Can- 

 ada]. 

 Potamogeton Pennsylvanicus Britton 257. 

 Potamogeton nuttallii Keller and Brown 22. 



*P. natans, reported as common throughout by Britton and by Keller & 

 Brown, I have been unable to find in southern New Jersey, nor have I seen 

 specimens from within our limits. 



