CLASS III. ORDER III. gf 



Eriophorum angustifolium. Willd. Narrow leaved 

 Cotton grass. 

 Culm somewhat triangular, leaves linear, grooved; 

 spikes many, on smooth stalks. 



This species and the following are well known by their white 

 woolly spikes among the meadow grass in summer. This grass 

 has narrow channelled leaves, ending in a triangular point, and 

 simple peduncles. — Wet grounds. — June. — Perennial. 



Eriophorum polystachyon. L. Broad leaved Cotton grass. 

 Culms triangular, leaves broad-linear, flat; spikes 

 many, on rough stalks, nodding. 



Leaves broader and more flat than in the foregoing; and the 

 wool shorter. Spikes on long drooping peduncles, which are 

 sometimes branched. — Wet meadows. — June. — Perennial. 



Eriophorum Virginicum. L. Virginian Cotton grass. 

 Culms roundish below, three sided above; spikes 

 nearly sessile, clustered, erect ; involucre two or three 

 leaved. 



Leaves very long. Wool of a reddish color, short. — Wet 

 meadows and swamps. — July. — Perennial. 



24. SPARTINA. 

 Spartina Cynosuroides. 31uhl. Rough grass. 



Spikes numerous, alternate, or scattered; pedun- 

 cles rough; outer valve of the calyx rough with 

 minute teeth on the back. 



Syn. Dactylis cynosuroides. L. 



Trachynotia cynosuroides. Mich. 

 Stem three feet high, round and smooth. Leaves very long, 

 smooth, somewhat rough on the margin, the edges convolute 

 when the plant grows near the sea. Spikes numerous, on rough 

 peduncles, given off successively from the three sides of a trian- 

 gular common stalk. Flowers closely imbricated, in a double 

 row, leaning to one side of their flexuous receptacle. Inner valve 



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