PLANTS OF SOUTHERN NEW JERSEY. 275 



Fr. — Late August to early October. 



Maritime. — Spring Lake (NY), Spray Beach (L), N. Beach Haven (L), 

 Absecon, Ocean City, Palermo (S), Mays Landing (NY), Anglesea, Cape 

 May, Cape May Pt. 



Fuirena hispida Ell. Bristly Fuirena. 



PI. XIX., Fig. 4- 



Fuirena hispida Elliot, Bot. S. C. and Ga. L 579. 1821 [Milledgeville, Ga.]. 

 Fuirena squarrosa Knieskern 34.— Muhlenberg, Gram. 50. 1817. — Willis 67. 

 Fuirena squarrosa var. hispida Britton 266. — Keller and Brown 66. 



Frequent along the edge of the salt marshes. 

 Fr. — ^Early August to early October. 



Maritime.— 'Qiiy Head (S), Forked River (S), Ocean View, Cold Spring, 

 Cape May (NB), Bias Creek. 



RYNCHOSPORA Vahl. 



Key to the Species. 



a. Spikelets spindled-shaped, 25 mm. long, in an open compound umbel 

 plant, g-2i dm. tall. 



b. Spikelets sessile on a few short rays. R. macrostachya, p. 276 



bb. Spikelets scattered, rays long and flexuous. R. m. inundata, p. 276 

 aa. Spikelets 1-4; 6-8 mm. long, terminal, plant 1.5-4 dm. tall. 



R. oligantha, p. 277 

 aaa. Spikelets numerous in dense axillary or terminal clusters. 

 b. Clusters corymbose. 



c. Spikelets white or whitish. 



d. No bristles at base of achene. R. pallida, p. 278 



dd. Bristles present. R. alba, p. 277 



cc. Spikelets chestnut or brown. 



d. Spikelets 2 mm. long. R. knieskernii, p. 278 



dd. Spikelets 4-5 mm. long. 



e. Spikelets 5 mm. long, plants seldom over 3 dm. in height. 



R. fusca, p. 280 

 ee. Spikelets 3-4 mm. long, plants 3-9 dm. high. 

 /. Bristles of achene upwardly barbed. 



g. Leaves filiform, involute. R. Ulifolia, p. 279 



gg. Leaves fiat grass-like. 



h. Plant very slender, spikelets usually few in an 

 umbel. R. gracilenta, p. 277 



hh. Plant more robust with larger, numerously- 

 flowered umbels. R. smallii, p. 279 

 ff. Bristles of achene downwardly barbed. 

 Plant slender, leaves slender. 



R. glomerata leptocarpa, p. 279 



