PUANTS OF SOUTHERN NEW JERSEY. 241. 



Panicularia canadensis (Michx.).* Rattlesnake Grass. 



PI. XV., Fig. 3. 



Brisa Canadensis Michaux, Fl. Bor. Am. I. 71. 1803 [Canada] .-Barton, 



Fl. Phila., I. 63. 1818. 

 Glyceria canadensis Knieskern 38.— Britton 295. 



Swamps of the Northern and Middle districts, common ; rarely 

 in the Pine Barrens. 



F/.— Mid- June to mid- July. 



Middle District.—Farmmgda.le, New Egypt, Riverside, Pemberton (C), 

 Birmingham, Fish House, Haddoniield (S), Griffith's Swamp, Gibbstown 

 (NB), Elm (C), Kirkwood (C), Mickleton, Clementon (S), Albion, Sickler- 

 ville (S), Gloucester, Salem (C), Beaver Dam. 



Pine Barrens. — Bamber, I,andisville, Vineland. 



Panicularia obtusa (Muhl.). Blunt Manna Grass. 



PI. XV., Fig. 4. 



Poa obtusa Muhlenberg, Gram. 147. 1817 [Pennsylvania, New Jersey and 

 New England].— Barton, Fl. Phila,, I. 62. 1818.— Torrey, Fl. U. S. I. 

 112. 1824. 



Glyceria obtusa Knieskern 38.^Britton 295. 



Panicularia obtusa Keller and Brown 52. 



Swamps and bogs throughout our region and locally in Hud- 

 son and Middlesex Counties to the north. 



Pi. — Early July to late August and sporadically into October. 



Middle District. — Farmingdale (S), Hartford, Birmingham, Delaire, Fish 

 House, Griffith's Swp., Westmont (S), Lindenwold (S), Repaupo, Tomlin 

 (S),. Mickleton (NY), Paulsboro, Sicklerville (S), Swedesboro. 



Pine Barrens. — Allaire, Lakehurst, Toms River (S), Bear Swamp (S), 

 Hammonton, Parkdale (S), Egg Harbor City, Eighth St. (T). 



Cape May. — Green Creek, Cold Spring (OHB). 



Panicularia nervata (Willd.) Nerved IVIanna Grass. 



Poa nervata Willdenow, Sp. PI. I. 389. 1798 [North America].— Barton, Fl. 



Phila., I. 61. 1818. 

 Glyceria nervata Kriieskern 38. — Britton 296. 



* Panicularia laxa Scribner (Bull. Torr, Club XXL, 37. 1894.— Mt. Desert, 

 Me.), is reported from Mickleton and Swedesboro. Specimens in the Acad- 

 emy herbarium show smaller spikelets,.but I cannot find in this character or in 

 those advanced by Prof. Fernald {Rhodora 1910, p. 13s) sufficient constancy 

 to make the recognition of this form desirable so far as local material is 

 concerned. At most it can only be regarded as a sub-species. It was col- 

 lected by Mr. Heritage at Mickleton before it was described by Scribner. 

 16 MUS 



