58 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



7. Panicum miliaceum L. Sp. PI. 58. 1753. Hog millet. 

 Milium panicum Mill. Gard. Diet. no. 1. 1759. 



Milium esculentum Moench, Meth. PI. 203. 1794. 

 Type locality: "Habitat in India." 



Range: Native of the Old World, introduced rather sparingly in the United States; 

 often cultivated. 

 New Mexico: Flora Vista; Gilmores Ranch. 



8. Panicum barbipulvinatum Nash, Mem. N. Y. Bot. Gard. 1: 21. 1900. 

 Type locality: "Yellowstone Park; Lower Geyser Basin." 



Range: British Columbia and Wisconsin to California and Texas. 

 New Mexico: Common throughout the State except along the Pecos Valley and 

 eastward. Sandy fields, in the Lower and Upper Sonoran zones. 



9. Panicum pampinosum Hitchc. & Chase, Contr. U. S. Nat. Herb. 15: 66. 1910. 

 Type locality: "On range reserve, altitude 2,600 feet, Wilmot, Arizona." 

 Range: Southern New Mexico and Arizona. 



New Mexico: Organ Mountains; Grant County. Dry hills, in tbe Upper Sonoran 

 Zone. 



10. Panicum hirticaule Presl, Rel. Haenk. 1: 308. 1830. 

 Type locality: Acapulco, Mexico. 



Range: New Mexico and southern California to Mexico. 



New Mexico: Southwest corner of the State, north to Mangas Springs, east to the 

 Organ Mountains. Dry hills and plains, in the Lower and Upper Sonoran zones. 



11. Panicum hians Ell. Bot. S. C. & Ga. 1: 118. 1816. 

 Type locality: South Carolina or Georgia. 



Range: South Carolina and Florida to Texas and New Mexico. 



New Mexico: Las Cruces (Plank 6). Damp ground, in the Lower Sonoran Zone. 



12. Panicum hallii Vasey, Bull. Torrey Club 11: 64. 1884. 

 Type locality: Dry hills, Austin, Texas. 



Range: Texas to Arizona, south into Mexico. 



New Mexico: Cross L Ranch; Mangas Springs; Deming; Las Cruces; Organ Moun- 

 tains; Buchanan; Roswell; Carlsbad; Queen. Dry hills and mesas, in the Lower 

 and Upper Sonoran zones. 



13. Panicum virgatum L. Sp. PI. 59. 1753. Switch grass. 

 Panicum giganteum Scheele, Linnsea 22: 340. 1849. 



Type locality: "Habitat in Virginia." 



Range: Wyoming and Maine to Florida and Arizona, south into Mexico and the 

 West Indies. 



New Mexico: Farmington; Pecos; Tesuque; Grant County; Organ Mountains; 

 Ruidoso Creek; Roswell. Plains and low hills, in the Upper Sonoran Zone. 



14. Panicum havardii Vasey, Bull. Torrey Club 14: 95. 1887. 

 Type locality: Guadalupe Mountains, Texas. 



Range: Western Texas to New Mexico and Mexico. 



New Mexico: Las Vegas; Roswell. Plains and low hills, in the Upper Sonoran 

 Zone. 



15. Panicum plenum Hitchc. & Chase, Contr. U. S. Nat. Herb. 15: 80. 1910. 

 Type locality: Mangas Springs, New Mexico. Type collected by Metcalfe (no. 



739). 



Range: Texas to southern Arizona and northern Mexico. 



New Mexico: Mangas Springs; Organ Mountains. Dry hills and canyons, in the 

 Upper Sonoran Zone. 



