224 REPORT OF NEW JERSEY STATE MUSEUM. 



Sporobolus serotinus Knieskern 2,7. — Willis y2. — Gray Man. Ed. I. 577. 

 1848. — Britton 288. — Keller and Brown 43. 



Pine Barren bogs common, also locally in swamips in the 

 Middle district. 



This and the preceding are exceedingly delicate little grasses 

 characteristic of the Pine Barren bogs, and occurring outside 

 this district only in those so-called Pine Barren islands which 

 are found in the adjacent territory. 



Fl. — Mid-August to early September. 



Middle District. — Griffith's Swamp, Lindenwold (S). 



Pine Barrens. — Toms River, Forked River, Waretown, Manahawkin, 

 Coxe's, West Creek (S), Pasadena, Speedwell (S), Batsto (S) opp. Crow- 

 leytown, Taunton (S), Atco, Cedar Brook, Ancora (P), Hammonton, Eighth 

 St., Landisville, Egg Harbor City (S). 



CINNA L. 



Cinna arundinacea L. Wood Reed Grass. 



PI. XII., Fig. 4. 



Cinna arundinacea Linnaeus, Sp. PI. 5. 1753 [Canada]. — Barton Fl. Phila. 



I. 44. 1818. — Knieskern 2)7- — Britton 289. 



Shady ground ; common in the northern counties and less 

 frequent throughout the Middle district. Common also along 

 the coastal strip and on both sides of the Cape May peninsula. 



The coast plant always develops a very heavy inflorescence. 

 Plants of the other extreme probably accounted for the "C. 

 pendiila" credited to South Jersey in Willis' Catalogue, but which 

 has very properly, I think, been omitted from subsequent cata- 

 logues, as there are no specimens extant and the plant is a 

 typical mountain species. 



Fl. — Late July to early September. 



Middle District. — New Egypt, Delair, Fish House, Hartford, Lawnside 

 (S), Gloucester (P), Mickleton (H), Swedesboro. 



Coast Strip.— Ft. Pleasant (P), Ocean City (S), Palermo (S), Mays 

 Landing (S), Five-Mile Beach, Piermont (S). 



Cape May.— Goshen (S), Cape May (OHB). 



AGROSTIS L. 



Key to the Species. 



a. Spikelets consisting of two glumes and two flower-scales, the shorter 

 one at least one-third as long as the other. 

 b. Panicle large and open. 



