WOOTON AND STANDLEY—-FLORA OF NEW MEXICO. 77 
One of the important range grasses of the State, on the plains. It is able to endure 
considerable amounts of alkali. 
8. Sporobolus wrightii Munro; Scribn. Bull. Torrey Club 9: 103. 1882. Sacaton. 
Type LocaLiry: Near Pantano, Arizona. 
Rance: Western Texas to southern Colorado and northern Mexico. 
New Mexico: Socorro; Fort Bayard; Dog Spring; Deming; Mangas Springs; Gila 
Hot Springs; Las Vegas; Buchanan; Carrizozo; Carlsbad. Dry hills and plains, in the 
Upper Sonoran Zone. 
An important range grass. Both this and the preceding are often cut for hay. 
' 9, Sporobolus nealleyi Vasey, Bull. Torrey Club 15: 49. 1888, name only; Contr. 
U.S. Nat. Herb. 1: 57. 1890. NEALLEY’S DROPSEED. 
Type LocALity: Brazos Santiago, Texas. 
Rance: Western Texas to New Mexico. 
New Mexico: Pecos; near Suwanee; Las Cruces; White Sands; Round Mountain; 
plains 35 miles south of Torrance; Roswell. Dry plains and hills, in the Lower and 
Upper Sonoran zones. 
10. Sporobolus cryptandrus (Torr.) A. Gray, Man. 576, 1848. 
Agrostis cryptandrus Torr, Ann. Lyc. N. Y. 1: 151. 1824. 
Type Locauity: “On the Canadian River,’’ Colorado? 
Rance: Washington and Maine to Arizona and Texas. 
New Mexico: Common throughout the State. Plains and dry slopes, in the Lower 
and Upper Sonoran zones. 
“ 11. Sporobolus asper (Michx.) Kunth, Enum. PI. 1: 210. 1833. 
Agrostis asper Michx. F 1. Bor. Amer. 1: 52. 1803. 
Type LocaLity: “ Habitat in collibus rupibusque regionis I]linoensis.”’ 
RANGE: Minnesota and Nebraska to New England, south to Texas and Florida. 
New Mexico: Pecos (Standley 5313). Open slopes, in the Upper Sonoran Zone. 
12. Sporobolus flexuosus (Thurb.) Rydb. Bull. Torrey Club 32: 601. 1905. 
Sporobolus eryptandrus fleruosus Thurb. Contr. U. 8. Nat. Herb. 3: 62. 1892. 
Type Locauity: “Dry western plains, Colorado, New Mexico, Arizona to Texas.” 
Rance: Nevada to Texas and Mexico. 
New Mexico: Carrizo Mountains; Farmington; Socorro; Albuquerque; Deming; 
Tortugas Mountain; White Sands; Mesilla Valley; Organ Mountains. Sandy soil, in 
the Lower and Upper Sonoran zones. 
83. POLYPOGON Desf. BrarpDGRASS. 
Mostly annuals with decumbent or erect stems, flat leaves, and densely flowered 
terminal panicles; spikelets 1-flowered, hermaphrodite; glumes nearly equal, usually 
broader above, entire or 2-lobed, awned; lemma much smaller than the glumes, thin, 
hyaline, entire, emarginate, or bifid, awned, the awn slender, straight, or geniculate 
and twisted below; stamens | to 3; styles short, distinct; stigmas plumose; grain free. 
KEY TO THE SPECIES. 
Glumes notched at the apex; awns very long, concealing the 
spikelets...........---- 0-2-2 e ee eee eee eee eee eee 1. P. monspeliensis. 
Glumes attenuate at the apex; awns short, not concealing the 
spikelets.........------- 0-0-0202 ee eee eee eee eee cece 2. P. littoralis. 
1. Polypogon monspeliensis (L.) Desf. Fl. Atlant. 1: 67. 1800. 
Alopecurus monspeliensis L. Sp. Pl. 61. 1753. 
Tyre Ltocatity: “Habitat Monspelii.” 
