100 



Fig. 74. Spartina cynosuroides (L.) Willd. FRESHWATER CORD-GRASS.— 

 a, A spikelet showing the exserted stamens; b, a spikelet with the stigmas ex- 

 serted; c, the same with the empty glumes removed. Figs. 172 to 177 in Bui. 7 

 illustrate other species of Spartina. 



74. SPARTINA Schreb. Gen. PI. 43. 1789. Spikelets 1-flowered, strongly 

 flattened laterally, sessile, and closely imbricated in 2 rows along one side of a 

 continuous rachis, forming unilateral spikes, which are scattered along a com- 

 mon axis; rachilla articulated below the empty glumes and not produced be- 

 yond the floret. Glumes 3, the 1st two empty, keeled, acute, or bristle-pointed, 

 unequal, the 2d as long as or often exceeding the 3d or flowering glume. 

 Stamens 3. Styles elongated, filiform. Grain narrow, free within the glume 

 and palea. Coarse perennials, with strong, creeping rootstocks, rigid culms, 

 and long, tough leaves. 



Species 7, extratropical North and South America and along the coasts of 

 Europe and Africa; chiefly maritime, or in the saline regions of the Great 

 Plains. 



