290 GEOLOGICAL SURVEY OF NEW JERSEY. 
A. brevipilis (Torr.), Benth. (Calamagrostis brevipilis, Gray.) 
In pine-barren swamps; frequent. Probably generically 
distinct from the last. 
AIRA, L. 
Hair-grass. 
A. PR#zcOX, L. 
In sandy fields, southern counties. Camden: Near Camden 
—Redfield ; near Gloucester—Parker. Gloucester: Abundant 
about Mullica Hill—Britton; Berkeley and Mickleton—B. 
Heritage. Atlantic: Somers Point, and Cape May :—Com- 
mons. Naturalized from Europe. 
A. CARYOPHYLLEA, L. 
Salem: Roadsides near Salem—Canby. Fugitive from 
Europe. 
DESCHAMPSIA, Beauv. 
Hair-grass. 
D. flexuosa ‘L.), Griseb. (Aira flexuosa, L.) 
Sandy or rocky woods. Frequent throughout the State. 
D. ceespitosa (L.), Beauv. (Aira cxspitosa, L.) 
Monmouth and Ocean: “Damp places, rare’””—Knieskern. 
Warren: Along the Delaware River above the Water Gap, 
1884——Britton. 
HOLCUS, L. 
Velvet-grass. 
H. ranartus, L. 
Fields and meadows; common. Naturalized from Europe. 
TRISETUM, Pers. 
Trisetum. 
T. Pennsylvanicum (L.), B.S. P. (4. palustre, Torr.) 
Wet meadows in the northern counties. Bergen: Closter— 
Austin. Morris: Near Brook Valley—Britton. Warren: Two 
miles north of Washington—Garber. Gloucester: Two miles 
southeast of Mickleton—Heritage. 
