PUANTS OF SOUTHERN NEW JERSEY. 207 



Panicum columbianum thinium Hitch & Chase. 



Panicum unciphyllmn thinium Hitchcock and Chase. Rhodora VIII. 209. 

 [Toms River, N. J.] 



Distribution similar to the last, from which it is perhaps hardly 

 separable. 



Fl. — Early June to late July. 



Middle District.— L^v^nsi^c (S), Mantoloking (H&C). 



Pine Barrens.— "Toms River (H&C), Forked River (H&C), Chatsworth 

 (S), Bear Swamp (S), Atsion (H&C), Tuckerton (H&C), Palermo, Egg 

 Harbor City. 



Coast Strip— Octan City (S). 



Cape May. — Court House (S). 



Panicum ensifolium Baldwin. Britton's Panic Grass. 



Panicum ensifolium Baldwin, in Elliott Flor. S. Car. & Ga. I. 126. 1817 



[Georgia]. 

 Panicum Brittoni Nash, Bull. Torr. Bot. Club XXIV. 194. 1897 [Forked 



River, N. J.]. 



Bog-gy or wet sandy ground in the Pine Barren and Cape 

 May districts, and locally in west Jersey. 



This is the most delicate species after P. wrightianum. It 

 was first collected in New Jersey by Dr. N. L. Britton at Forked 

 River, in 1896, and as it was at that time thought to be a new 

 species, Mr. Nash named it in honor of the collector. 



FL — Early June to mid-July. 



Middle District. — Lawnside (S). 



Pine Barrens.— Allaire, Pt. Pleasant, Toms River (H&C), Forked River, 

 Manahawkin, Penn Place (H&C), Atsion (H&C), Chatsworth, Speedwell, 

 Pancoast. 



Cape May. — Cold Spring. 



Panicum sphaerocarpon Ell. Round-fruited Panic Grass. 



Panicum sphcerocarpon Elliot, Flor. of S. Car. & Ga. I. 125. 1817 [Georgia]. 

 Britton 281. — Keller and Brown 37. 



Sandy ground ; locally in northern New Jersey and common 

 throughout our region. One of the most uniformally distributed 

 and easily recognized species, the small round spikelets, broad, 

 short and stiff leaves being particularly characteristic. 



Fl. — Mid-June to mid-August. 



Middle District. — Medford, Lawnside (S). 



Pine Barrens.— 'Farmingdale (S), Forked River, Tuckerton, New Lisbon, 

 White Horse, Chatsworth, Speedwell (S), Atco, Pancoast (S), Palermo, 

 Dennisville (S). 



