268 GEOLOGICAL SURVEY OF NEW JERSEY. 
R. laxa, Vahl, var. macrostachya (Torr.), Clarke. (R. macrostachya, 
Gray.) 
In swamps. Ocean: Beaverdam, Manchester, rare—Knies- 
kern, Camden: Longacoming—C. E. Smith. Cape May, and 
Gloucester: Franklin—Parker. Salem: Border of a pond 
near Pennsgrove—Commons. 
CLADIUM, P. Br. 
Twig-rush. 
C. mariscoides (Muhl.), Torr. 
In swamps. Frequent or common throughout the State. 
SCLERIA, Berg. 
Nut-rush. 
S. triglomerata, Michx. ‘ 
In low grounds. Bergen: Closter, rare—Austin; Ruther- 
furd—Schuh. Hudson: Newark meadows—Le Conte. Mor- 
ris: Chatham—Leggett. Hunterdon: Frequent—Best; and 
frequent on Yellow Drift soils, middle and southern counties. 
Var. gracilis, Britt. 
Camden: Griffith’s Swamp—A. H. Smith. 
S. reticularis, Michx. 
In sandy soil. Ocean: Manchester—Leggett. Atlantic: 
Main Road Station—C. A. Gross. 
S. Torreyana, Walp. (S. laxa, Torr.) 
In low grounds in the pine barrens; not common. Ocean: 
Paint Hollow, near Manchester, rare—Knieskern ; Toms River 
—Parker. Burlington: Near Batsto—Parker. 
S. pauciflora, Muhl. 
Warren: In dry, rocky soil on Mt. Tammany, Delaware 
Water Gap—Britton. Monmouth: Near Shark River, on dry 
upland—Knieskern, Atlantic: Landisville and near Buena 
Vista—C. A. Gross. 
8. verticillata, Muhl. 
Bergen: Hackensack meadows, 1863—T. F. Allen. 
