No. 35. 

 CALAMAGROSTIS ALEUTICA Trin. Bong. Veget, Sitcha, 171. 



Plant perennial, densely tufted, with stout rootstocks. 



Culms erect, simple, smooth, 2 to 5 feet high. 



Leaves from the base, with broad tapering sheaths and rather rigid, erect blades 

 a foot long or more. Leaves of culm u sually 3 ; sheaths loose, striate, sligh tly roughen ed, 

 usually shorter than the internodes; blades fiat or loosely involute, with long, attenuate 

 points hispid on both sides, 10 to 20 inches long ; ligule ovate, truncate, nearly 2 lines 

 long. 



Inflorescence a rather narrow, closely flowered, erect panicle 6 to 10 inches long 

 and 1 to 2 inches wide; rays unequal, crowded in 10 to 15 clusters, the longer rays 1 

 to 3 inches long, erect or ascending, subdivided, and spikelet-beariug beyond the mid- 

 dle, the shorter ones spikelet-bearing to the base. 



Spikelets usually exceeding the pedicels, 2 to 3 lines long; empty glumes spread- 

 ing at flowering-time, narrowly lanceolate, acute, slightly scabrid, hispid on the nerves; 

 first glume carinate, 1-nerved, 2£to 3 lines long; second glume convex, 3-nerved, £ line 

 shorter; floral glume oblong, obtusely 2-lobed at the apex, thin, purple or purple 

 spotted, hispidulous, 3-nerved, or obscurely 4- or 5-nerved, 2 lines long; hairs of the 

 callus and linear rudiment half as long as the glume; awn attached below the middle, 

 not equaling the glume; palet oblong, irregularly toothed or fringed at the obtuse 

 apex, thin 2-nerved, 1£ lines long; lodicules present, but small. 



Plate XXXV; a, empty glumes; b, floral glume, palet, and inclosed stamens 

 nearly in the natural positions as seen at flowering time. 



California to Alaska. The northern specimens are usually larger and have larger 

 spikelets. A tall, coarse grass, eaten by cattle during winter. 



