340 SUMMER FLOWERS. 



tapering to a fine point ; awn of the pales usually projecting 

 beyond the glume. — Pastures and hedges. Fl. July. 



(320) Spartina. 



S. stricta: steins stiff, erect, 1-2 feet high; leaves short, 

 erect, flat, excepting at the top, the edges always rolled in- 

 wards when dry ; panicle 3-4 inches long, consisting of 2-4 

 erect, spike-like branches, with the spikelets arranged in two 

 rows, erect, turning to one side ; glumes downy. — Muddy 

 salt-marshes. Fl. August. 



(321) Lepturus. 



L. incurvatus : annual; stems decumbent, branched at the 

 base, the flowering-stems curved upwards or erect, 3-9 inches 

 high ; leaves short, fine, the uppermost close under the flowers ; 

 spike 2-4 inches long, usually curved, the spikelets imbedded 

 in the axis, which breaks off readily at every notch. — Sea 

 Hard-grass. — Salt-marshes and maritime sands. Fl. August. 



(322) Nardus. Mat-grass. 



N. striata : stems densely tufted, erect, wiry, |-1 foot liigh ; 

 leaves fine, stiff, bristle-like ; spike erect, slender, simple, one- 

 sided, often assuming a purplish hue — Moors, heaths, and 

 hilly pastures. Fl. July. 



(323) Elymus. Lyme-grass. 



E. arenarius : stems 2-4 feet high ; leaves stiff, glaucous, 

 rolled inwards on the edges, ending in a hard point ; spike 

 close, 3-4 inches to 8-9 inches long, the spikelets in rather 

 distant pairs ; glumes lanceolate. — Maritime sands. Fl. July. 



E. geniculatus is a related plant, with the spike much elon- 



