212 REPORT OF NEW JERSEY STATE MUSEUM. 



Confined to the lower part of the Cape May peninsula, growing 

 in moist soil. This species was discovered on the border of Lily 

 Lake, Cape May Point, in September, 1905, by Mr. C. S. 

 Williamson. It was not previously known from north of Vir- 

 ginia. 



Fl. — Early August into October. 



Cape Ma^'.— Cape May Pt. 



ECHINOCHLOA Beauvois. 



Echinocloa walteri (Pursh). Salt-Marsh Cockspur Grass. 



PI. XL, fig. 3. 

 Panicum Walteri Pursh, Fl. Am. Sept. I. 66. 1814 [Canada and New York 



near salt water]. 

 Panicum Criis-galli Jiispidtim Knieskern 40. — Britton 282. 



Common along the edge of salt marshes on the entire coast 

 and introduced at a few spots in west Jersey. Distinguished 

 from the common weed "Barnyard Grass" B. Cnis-galli (L) 

 by its much larger head and longer bristles. 



Fl. — Late August to early October. 



Middle District. — Clementon. 



Maritime. — Seaside Park (Ha), Forked River, Barnegat City (L), 

 Harvey Cedars (L), Beach Haven (L), Ocean City (S), Tuckahoe (S), 

 Sea Isle City (S), Avalon, Cape May, Dennisville (S). 



CH>ETOCHLOA Scribner. 



Key to the Species 



a. Bristles downwardly barbed, spikes adhering to one's clothing. 



[C. verticillata]* 

 aa. Bristles upwardly barbed.. 



b. Spike 20-50 cm. long, green. C. magna, p. 213 



bb. Spike 10-20 cm. long, purplish. [C italica]'\ 



bbb. Spike less than 15 cm. long. 



c. Annual, with merely a tuft of slender rootlets. 



d. Bristles green, spikelets 2 mm. long. [C. viridis]t 



dd. Bristles tawny yellow, spikelets 2.5-3 mm- [C glauca'\% 



cc. Perennial, with a creeping root stalk. 



d. Culms tufted, green or purplish. C. imberbis, p. 213 



* Barbed Foxtail Grass. A weed about dwellings, 

 t Millet. Cultivated and escaped in waste ground. 

 t Green Foxtail Grass. A common weed. 

 § Yellow Foxtail Grass. A common weed. 



