246 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Subgenus PAUROCHAETIUM Hitchc. & Chase, Contr. U. 8. Nat. Herb. 15: 42. 1910. 
1. Panicum ramisetum Scribn. U.S. Dept. Agr. Div. Agrost. Circ. 27: 9. 1900. 
Type locality, ‘‘Texas.”’ 
RanGeE: Southern Texas and northern Mexico.! 
TRUE PANICUM. 
2. Panicum geminatum Forsk. Fl. Aegypt. Arab. 18. 1775. 
Type locality, ‘‘Rosettae in pratis ad littora Nili.”’ 
RanaeE: Southern United States to South America; also in warmer parts of the Old 
World. 
8. Panicum paludivagum Hitche. & Chase, Contr. U. 8. Nat. Herb. 15: 32. /. 18. 
1910. 
Type locality, ‘‘‘in water,’ vicinity of Eustis, Lake County, Florida.”’ 
RanaeE: Southern United States to Central America. 
4. Panicum barbinode Trin. Mém. Acad. St. Pétersb. VI. Sci. Nat. 1: 256. 1834. 
PaRA GRABS, 
Type locality, Bahia, Brazil. 
Rance: Tropics and subtropics of America; escaped from cultivation in North 
America, 
5. Panicum reptans L. Syst. Nat. ed. 10. 870. 1759. 
Type locality, Jamaica. 
Rance: Tropics and subtropics of both hemispheres. 
6. Panicum fasciculatum Swartz, Prodr. Veg. Ind. Occ. 22. 1788. 
Type locality, ‘‘Jamaica.’’ 
Range: Southern United States to South America. 
6a. Panicum fasciculatum chartaginense (Swartz) Doell in Mart. Fl. Bras. 22: 
205. 1877. 
Type locality, ‘America meridionalis, Chartagena,’’ Venezuela. 
RanGE: Southwestern United States to South America. 
7. Panicum molle Swartz, Prodr. Veg. Ind. Occ. 22. 1788. 
Type locality, ‘‘ India occidentalis.”’ 
Rance: Mexico to South America. 
8. Panicum arizonicum Scribn. & Merr. U. 8. Dept. Agr. Div. Agrost. Circ. 82: 2. 
1901. 
Type locality, ‘‘Mesas near Camp Lowell, Santa Cruz Valley, Arizona, 465 C. G, 
Pringle, 1881.”’ 
Rance: Southwestern United States to Mexico. 
9. Panicum texanum Buckl. Prel. Rep. Geol. Agr. Surv. Tex. App. 3. 1866. 
COLORADO GRABS. 
Type locality, ‘‘Austin, Texas.’”’ 
RANGE: Texas and northern Mexico. 
10. Panicum vaseyanum Scribn.; Beal, Grasses N. Amer. 2: 140. 1896. 
Type locality, wet places, pine plains, base of Sierra Madre, Chihuahua. ‘‘Mexico, 
Pringle 1415.’’ 
Rance: Chihuahua to Jalisco. 
’ The citation of specimens has been given in a recent revision of the genus Panicum 
(Contr. U.S. Nat. Herb. 15.1910). It is proposed to publish at an early date a sup- 
plement to this revision which shall include all the subsequent collections of this 
genus in the U. 8. National Herbarium from North America south of the United States. 
For these reasons it seems desirable to omit from the present paper the detailed 
citation of specimens under this genus. 
