490 POACE.E. 



Kunth, Enum. PL 1:331 (1833). E. inlifera Scheele, Linnsea 

 22 : 344 (1849). 



A tufted erect perennial, 30-60 cm. high. Sheaths of sterile 

 shoots slightly compressed-keeled, more or less pubescent, throat 

 pubescent; ligule a ciliate ring; blades ciliate, flat or involute with 

 filiform points, 4-10 cm. long, 2-3 cm. wide, tliose of the culm 

 mucli the same. Panicle often partly enclosed, thin, narrow or 

 ovoid, 25-35 cm. long; rays in twos to fours, Avith hairy axils, 12- 

 16 cm. long, branching from near the base. Sj)ikelets on stiff 

 slender pedicels, 0.5-1.5 cm. long, oval, 4-8-flowered, 3-4 mm. long; 

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

 mm. long; floral glume 1.7 mm. long, broadly oval, lateral nerves 

 not prominent; palea incurved. Grain compressed, oval, 0.7 mm. 

 long. 



Texas, Parry & Palmer 938, Nealley; Colorado, Jones \u 1884; 

 Arizona, Pringle in 1884; Mexico, Palmer 203, Bourgeau 2643, 

 ScJiaffner 1026. 



Texas to Arizona and Mexico. 



26. E. spicata Vasey, Coult. Bot. Gaz. 16: 146 (1891). 



A tufted rather stout erect perennial, 90-120 cm. high. Sheaths 

 5, longer than the internodes; ligule a ciliate ring; blades smooth 

 below, scabrous above, involute, 25-40 cm. long, 4-6 mm. wide with 

 long filiform points. Panicle dense, 30-40 cm. long, 4-6 mm. wide 

 with a few rays slightly projecting. Spikelets oval, 1.7-2.5 mm. 

 long, 3-4-flowered; empty glumes oval, second 1-nerved, 1.2 mm. 

 long; floral glume oval, mucronate, 1.5 mm. long, the lateral 

 nerves obscure; palea oval, 1.2 mm. long. Grain terete, oval, 

 0.7-0.8 mm. long. 



Lower California, Brandegee 10, in 1890. 



112. (225). Eatonia Raf. Jouru. Phys. 89:104 (1819). Re- 

 boulea Kunth, Rev. Gram. Suppl. 29, t. 84 (1829-35). Colobant/ius 

 Trin. Mem. Acad. St. Petersb. (VI.) 1 : 66 (1830). 



Spikelets usually 2-flowered, with an abortive rudiment, numer- 

 ous, smooth, in a dense or interrupted panicle, rachilla articulate 

 below the flowers. Empty glumes subscarious, the first narrow, 1- 

 nerved, the second broadly obovate or elliptical, 3-nerved; fioral 



