CIILOKIDE.E. 435m 



sheaths; rays ascending, densely flowered, 1-2.5 cm. long. Spike- 

 lets nearly sessile,, -i-e-llowered, 3-5 mm. long; empty glumes 

 ovate, acute, 1-nerved, first 1.5 mm. long, second 2-2.5 mm. long; 

 floral glume oval, 3-nerved, 2-2.5 mm. long, shortly ciliate below on 

 all the nerves, two-lobed at the apex, tlie awn 0.7-1 mm. long; 

 palea scabrous on the keels. 



Arizona, Pringle for U. S. Dept. Agricul. ; Mexico, Pringle 

 692, 814, Palmer 551. 



Texas to Arizona and Mexico. 



7. L. imbricata Thurb. Gram. Mex. Bound, ined.,; S. Wats. Bot. 

 Calif. 2:293 (1880). D. inthricata (Thurb.) Seribn. Bull. Torr. 

 Club, 10:30 (1883). 



Culms erect, simple or sparingly branched below, 30-60 cm. 

 high. Sheaths loose; blades scabrous, setaceous above, 15-20 cm. 

 long, 3-4 mm. wide. Panicle erect, usually included at the base, 

 15-25 cm. long, spikelike, rays very numerous, ascending. Spike- 

 lets nearly sessile, appressed, imbricate, acute, 6-9-flowered, 5-7 

 mm. long; empty glumes 1-nerved, first ovate, 1.5 mm. long, sec- 

 ond oval or ovate, mucronate, 2.5 mm. long; floral glume oblong, 

 lateral nerves long-pilose below, obtuse, mucronate, 2.3-2.5 mm. 

 long; palea contracted below, but little shorter than its glume, 

 puberulent on the nerves. 



Arizona. Pringle m 1881 for U. S. Dept. Agricul. 549; Mexico, 

 Pringle cO Palmer. 



Southern California, Arizona, Mexico. 



Dr. Palmer notes that it is abundant in fields and gardens; 

 thrifty on alkali plains and near soft water; abundant in August 

 and September, when alfalfa is dried up; a good forage-plant, cut 

 and fed to animals. 



8. L. fascicularis (Lam.) A. Gray, Man. Ed. 1:588(1848). 

 Festuca fascicularis Lam. Tabl. Encycl. 1:189 (1791). D. fas- 

 cicularis Beauv. Agrost. 160 (1812). 



Smooth, light green; culms geniculate and branching. Sheaths 

 mostly shorter than the internodes; ligule fringed, 2-3 mm. long; 

 blades flat or involute, 15-20 cm. long, 2-3 mm. wide. Panicle 

 usually included below, 8-17 cm. long, rays mostly single, erect^ 



