948 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
24. Panicum bulbosum H. B. K. Nov. Gen. & Sp. 1: 99. 1816. 
Type locality, ‘‘Novae Hispaniae. ... juxta Santa Rosa, Los Joares et Guan- 
axuato.”’ 
Range: Mountains of Arizona and New Mexico to southern Mexico. 
24a. Panicum bulbosum sciaphilum (Rupr.) Hitchc. & Chase, Contr. U. 8. Nat. 
Herb. 15: 83. 1910. 
Type locality, ‘‘Sierra de Yavesia,’’? Michoacan. 
Rance: With the species. 
25. Panicum gouini Fourn. Mex. Pl. 2: 28. 1886. 
Type locality, ‘‘Vera Cruz.”’ 
RanGE: Gulf coast of the United States and Mexico; also coast of Uruguay. 
26. Panicum virgatum L. Sp. Pl. 59. 1753. 
Type locality, ‘‘ Virginia.”’ 
RanaeE: Northern United States to Central America. 
27. Panicum havardii Vasey, Bull. Torrey Club 13: 26. 1886. 
Type locality, ‘‘Guadalupe Mountains, Texas.”’ 
Rance: Western Texas, New Mexico, and northern Mexico. 
28. Panicum longum Hitchc. & Chase, Contr. U. S. Nat. Herb. 15: 111. f. 106. 
1910. 
Type locality, ‘‘Swamps near Jalapa, State of Vera Cruz, altitude 1,230 m,.” 
RanGeE: Known only from Jalapa. 
29. Panicum polygonatum Schrad. in Schult. Mant. 2: 256. 1824. 
Type locality, ‘‘In Brasilia, ad ripas fluvii Ilhéos.”’ 
Rance: Veracruz to Paraguay. 
30. Panicum pilosum Swartz, Prodr. Veg. Ind. Occ. 22. 1788. 
Type locality, ‘‘Jamaica.’’ 
RanGE: Mexico, West Indies, south to Brazil. 
31. Panicum laxum Swartz, Prodr. Veg. Ind. Occ. 23. 1788. 
Type locality, ‘‘Jamaica.”’ 
Rance: Mexico, West Indies, and south to Paraguay. 
32. Panicum cupreum Hitche. & Chase, Contr. U. S. Nat. Herb. 15: 120. f. 118. 
1910. 
Type locality, ‘‘Wet hollows in prairies of Flor de Maria, State of Mexico.”’ 
Range: Known only from the type collection. 
83. Panicum frondescens Meyer, Prim. Fl. Esseq. 56. 1818. 
Type locality, ‘‘In graminosis insulae Arouabisch,’’ British Guiana. 
Rance: Southern Mexico to South America. 
34. Panicum pulchellum Raddi, Agrost. Bras, 42. 1823. 
Type locality, ‘‘In sylvaticis prope Catumby * * * ab Urbe Rio Janeiro.” 
RanGeE: Veracruz to South America. 
35. Panicum biglandulare Scribn. & Smith, U. 8. Dept. Agr. Div. Agrost. Bull. 
4:13. pl. 14. 1897. 
Type locality, ‘‘Near Pinabete, Chiapas.’’ 
Ran@e: Southern Mexico and Guatemala. 
36. Panicum virgultorum Hack. Oesterr. Bot. Zeitschr. 51: 369. 1901. 
Type locality, ‘‘Costarica: in virgultis ad La Verbena prope Alajuelito.’? 
Rance: Veracruz to Panama. 
