No. 35. 

 CALAMAGROSTIS ALEUTICA TiJn. Hong. Veget. Sitcha, 171. 



I'liiiit i)ereijuiiil, dfiiscly tul'ted, witli stout rootstocks. 



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



Ijcarcs from the haso, with hi'oad taperiiifi sheaths and latlier liK'i"!, erect blades 

 afoot loll};- or more. Jjc^avesof culm usually -i: sheatlis loose, stiiate.sli}ilitlyrou};iieiie(l. 

 usually .shorter than the iiiternodcs; blades Hat or loosely involute, with ioiiy, attenuate 

 ]Miilits hispid on hotli sides, 10 to L'O inches loiij; : lijiulc ovate, truncate, nearly L' lines 

 lonji. 



Inflorescence ii vaX\n'v na now, closely tiowered, erect panicle (J to 1(( inches long 

 and 1 to 2 iue.hos wide; rays uue(|uai, crowded in 10 to 15 clusters, the longer rays 1 

 to .'{ inches long, erect or ascending, sid)di\ided, and spikelet-hearing beyond the mid- 

 dle, the shorter om-s si)ikelet-beariiig to tiu' base. 



Spikeicts u.sually exceeding the pedicels, 1! to •! lines long; empty glumes spiead- 

 ing at Howei'ing-time, luirrowly lanceolate, acute, sliglitly scabrid. hisjdd on the ncirves; 

 tirst glume carinate, 1-nerved, 2i to 'A lines long; second glume convex,. 'inerved, \ line 

 shorter; Horal glume oblong, obtusely 2 1obed at the ai)ex, thin, jiurple or pui])le 

 sjiotted, hispidiUous, 3-nerved, or ob.scurely 4- or 5-nerved, 2 lines long; hairs of the 

 callus and linear rudiment half as long as the glume; awn attache(l l)clo\vtlie nuddle, 

 not ('(pialing the glume; palet oblong, irregularly toothed or fringed at the obtuse 

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



Pirate XXXV; «, empty glumes; h, floral glume, |palci, ami inclosed stamens 

 nearly in the natural jjositions as seen at tiowering time. 



<'alifornia to Alaska. The northern si)ecimens aie usuall\ larger an<l lia\f larger 

 spikelets. .\ tall, coar.se grass, eaten by cattle during winter. 



