No. 77. 

 POA GLUM ARIS Triii. Mem. Aca.I. SI. Pet. ser. 6. i. 379 (1831). 



riant poreniiial. with a strong rootstock. 



(Jiilm erect, robust, smooth, striate, 1 to '2 feet tall. 



Liarvs of radical tufts and from sterile slioots muncrous, witli broad, thick, 

 striate sheaths and Hat, smooth, blunt-pointed blades, 2 to 4 lines wide and 3 to 8 

 inches loufi: leaves of culm usiuillybiit 1 above the base; sheaths loose. snio()tli,stiiate, 

 caniiate above, half open at the throat, half as h)ng as the culm; blade fiat or folded, 

 2 to () inches long; ligule 1 line long or less, crenuhite and minutely ciliate. 



Injloremcnvc a closely (lowered, coiitracted,'obloii};- |)ani(le 1 to S inches long; rays 

 in threes, fours, or fives, smooth, ascending or slightly spieading, uiiccjual. 2 Inches 

 lonj;- or less, divided and bearing numcrr.as rather ai)pressed, short pedicelled spike- 

 lets. 



Sjiil-elets oblauceolate, about 4 lines long, 3-to 5 flowered, usnally with a rudiment; 

 empty glnmes nearly eriiial, lance-ovate, acute, carinate, minutely scabrid, ratiier thick 

 for the genus, 3-nerved, 3 lines long; floral glnme broadly ovate, acute, often denticu- 

 late near the apex, minutely scabrid throughout, jtiibescent on the keel and margins 

 below, 5-to 7-nerved, 2 to lii lines long; palet linear oblong, 4-tootlied at the apex, 

 ])iibescent on the 2 keels; grain spindle-shaped, dark reddish brown, 1 line long. 



Plate LXXYII; «, part of branch with spikelets in ])osition; />, spikclct opened; 

 c, empty glumes; d, tloral glume; c, palet opened. 



Alaska near the coast, east shore of Iludson Bay, Labrador, and Newfoundland. 

 This species is very plainly marked by the broad, blunt leaves and the large spikelets 

 with thick, scabrous gluuu's, which give it much the ai)i)eiirancp of a Frfifuca. It has 

 not yet been found in (Jaiifornia or Nevada, the reference in Bot. Cal. ii. 313 being a 

 mistake for Festma confinis Vasey. 



