106 CONTEIBUTIONS FROM THE NATIONAL HEEBAEIUM. 



Type locality: Texas. 



Range: British Columbia and Montana to Arizona and Texas. 



New Mexico: Tunitcha Mountains; Farmington; Carrizo Mountains; Pecos; San- 

 dia Mountains; Santa Fe and Las Vegas mountains; Raton Mountains; Albuquerque; 

 Fort Bayard; Socorro; MogoUon Creek; Roy; Wliite and Sacramento mountains. 

 Moist hillsides, in the Upper Sonoran and Transition zones. 



10. Agropyron palmeri (Scribn. & Smith) Rydb.; Woot. & Standi. N. Mex. Agr. 

 Exp. Sta. Bull. 81: 153. 1912. 



Agropyron spicatum palmeri Scribn. & Smith, U. S. Dept. Agr. Div. Agrost. Bull. 4: 



33. 1897. 

 Agropyron smithii palmeri Jones, Contr. West. Bot. 14: 18. 1912. 

 Type locality": Arizona. 

 Range : Arizona and New I^Iexico. 

 New Mexico: Wheelers Ranch; Coolidge; Santa Fe; Agua Azul. 



11. Agrop3rroii smithii Rydb. Mem. N. Y. Bot. Gard. 1: 64. 1900. 



Colorado bluestem. 



Agropyron glaucum occidentale Scribn. Trans. Kans. Acad. 9: 119. 1885. 



Agropyron occidentale Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 27: 9. 1900. 



Type locality: Kansas. 



Range: Washington and Wisconsin to Arizona and Texas. 



New Mexico: Chama; Shiprock; Dulce; Carrizo Mountains; Sierra Grande; Tunit- 

 cha Mountains; Pecos; Cowles; Taos; Johnsons Mesa; Raton; Coolidge; Puertecito; 

 Gallo Spring; Mangas Springs; Reserve; Socorro; Nogal; White Mountains. Plains 

 and meadows, in the Upper Sonoran and Transition zones. 



Colorado bluestem is a valuable range grass, occurring in great abundance on the 

 foothills and the higher plains. 



12. Agropyron molle (Scribn. & Smith) Rydb. Mem. N. Y. Bot. Gard. 1: 65. 1900. 

 Agropyron spicatum molle Scribn. & Smith, U. S. Dept. Agr. Div. Agrost. Bull. 4: 



33. 1897. 



Agropyron smithii molle Jones, Contr. West. Bot. 14: 18. 1912. 



Type locality: "Saskatchewan to Colorado and New Mexico, and westward to 

 Idaho and Washington." 



Range: Washington and Saskatchewan to northern New Mexico. 



New Mexico: Raton; Chama; Farmington. Plains and low hills, in the Upper 

 Sonoran and Transition zones. 



71. LOLIUM L. Rye grass. 



Annuals or perennials with simple erect culms, flat leaves, and simple terminal 

 Bpikes; spikelets several-flowered, solitary, sessile in alternate notches of the con- 

 tinuous rachis, one edge of each spikelet placed against the rachis; rachilla jointed 

 between the florets; glumes 1 (2 in the terminal spikelet), shorter than or exceeding 

 the florets; lemmas rounded on the back, 5 to 7-nerved, obtuse, acute, or awned; 

 palea 2-keeled; stamens 3; styles very. short, distinct; grain smooth, adherent to the 

 palea. 



1. Lolium perenne L. Sp. PI. 83. 1753. 

 Type locality: "Habitat in Europa ad agrorum versuras solo fertili." 

 Range: Native of Europe, introduced in many parts of North America. 

 New Mexico: Chama; Santa Fe; Agricultural College. 



72. HORDEUM L. 



Annuals or perennials with terminal cylindrical spikes of awned si^ikelets; spike- 

 lets 1-flowered, 2 or 3 together at each Joint of the rachis, sessile or on very short 

 pedicels; rachilla articulated above the glumes and continued behind the palea of 



