494 POACE.E 



New York, Beal 101, 102; Ontiirio, Fowirr ; Peniisylviinia 

 (Philu.), Scrihn. for IT. S. Dept. Agricul. 5G5 ; lUiuois (C'liicsigo), 

 Beal 100 in 1869; Minnesota, Bailey B 32; Montana, Kelsey for 

 Anderson 63; Washington, Lake. 



Moist land. Xew England to Montana. 



6. E. longiflora (^'^asey). E. Fennsylvanica longiflora Vasey, 

 Dewey, Conlt. Contrib. U. S. Nat. Herb. 2: 544 (1894). 



Rather stont, 60-80 cm. higli. Sheaths smooth ; lignle 2 mm. 

 long ; blades tcabrid, flat, 9-13 cm. long, 3-5 mm. wide. Panicle 

 linear-lanceolate, 15 cm. long, rays spreading, 2-6 cm. long. 

 Spikelets 2-flowered ; empty glnmes scabrid on tlie keels, first 

 glume compressed, linear-lanceolate when spread, 3.3-3.7 mm. 

 long, second elliptical, acute Avhen spread, about 4 mm. long; 

 floral glume ellijitical, almost acute when spread, about 4 mm. long; 

 palea 2.3-2.7 mm. long. Nearly allied to E. Pennsylvanica, but 

 all the glumes and palea longer. 



Texas, Xeallcii for IT. S. Dept. Agricul. in 1888. 



113. (223)., KffiLERIA Pcrs. Syn. PI. 1: 97 (1805). ColUnaria 

 Ehrli. Beitr. 4:147 (1789). Acffialitis Trin. Fund. Agrost. 127 

 (1820). Aci/ialina Sehultes, Maut. 2: 13 (1824). AirovJiloa Link, 

 Ilort. Berol. 1:126 (1827). Foan'on Reiclib. Consp. 5] (1828). 

 Lophochloa Reichb. Fl. Germ. Exc. 42 (1830). Milhelmsia C. 

 Koch, Linna^a 21:400 (1848). Bmchystylus Dulac. Fl. Ilautes, 

 Pyr. 85 (1867). 



Spikelets 2-6-7-flowered, rarely 1-flowerod, flat, shortly pedicel- 

 late, numerous in a dense spikeliko cylindrical or interrui)te(l 

 panicle, rachilla glabrous, articulate between the floral glumes. 

 Em})ty glumes keeled, acute, or produced into short straight awns 

 or points, unequal, scarious on the margins ; floral glume similar 

 but nu)re scarious or hyaline, the upper ones gradually smaller, 3- 

 or rarely 5-nerved ; palea hyaline, 2-keeled, acute, 2-toothed or 2- 

 pointed. Stamens 3. Styles very sliort. Grain enclosed in the 

 glume aiul palea, but not adhering. 



Aninud or perennial, tufted grasses, blades flat or almost seta- 

 ceous. Nearly allied to Foa and Dartylis, 



A small genus of about twelve species, extending over the tern- 



