No. 4. 

 PHALARIS AMETHYSTINA Trin. A(;t. Petr. Ser. <;. iii. r.6 



Plant aunual, nitLuT coarse, siiioolli tlnoiiglioiit. 



Culms erect, stout, rarely braiidied, terete, iiaUeii above, 2 to .'> feet )ii<;li. 



Leavt'x of mini I to G; sheaths ratherloo.se, .striate, .scarioiis-iuar};iiied, shorter 

 thau the iiiteriiodes; blinles flat, lanceolate, ac-ute, about 9- nerved, 4 to (> lines wide 

 3 to 8 inches lonj;: lifiiili' nienibraiiaceous, ol)tuse, .'! lines loni;. 



Injlorcsceuce a dense, obloug, spike-like panicle 'l inch in diameter and .'! to 1 times 

 as long; branches mostly altei-nate, crowded with .short- pediceled spikelets on the 

 numerous divisions. 



SjnkeletK elliptic-obovate, 1 -flowered, 3 to -i^ lines long; empty gbmn's 4: outer 

 pair nearly equal, ovate-obloug, acute, puri)li.sh on the margins, minutely liispid on the 

 keel, cariiuite and narrowly winged above; innci' paii' hairy. rudinu'ntar.N scales a line 

 long, rather ])r(iniiiu'nt lor tlie genus; lloral ghime bioadly (i\ate, acule. I'oriaceous, 

 finely pubescent, (ihscurely nerved, lA to li lines long; i)alet lanceolate, Ihin-coria 

 ceous, smooth, slightly cleft at apex, U to li lines long. 



Plate IV: o. sj)il{elet with empty glumes spreiid tit show inclosed ])arts; ]>. inner 

 empty glumes and floret witli floral glume and palet shghtly sitread. 



California and Oregon. 



