330 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



30. Panicum polygonatum Schrad. in Schult. Mant. 2: 256. 1824. 



Swamps and moist soil, Trinidad and Tobago, and from Mexico to Paraguay. 

 Originally described from Brazil. 



31. Panicum milleflorum Hitchc. & Chase, Contr. U. S. Nat. Herb. 17: 494. 

 /. 70. 1915. 



Swamps, Panama to Trinidad. Originally described from Panama, 



32. Panicum pilosum Swartz, Prodr. Veg. Ind. Occ. 22. 1788. 



Moist ground, ditches, and swamps, Mexico and throughout the West Indies, 

 except Santo Domingo and Porto Rico, to Paraguay. Originally described from 

 Jamaica. 



33. Panicum boliviense Hack. Repert. Nov. Sp. Fedde 1 1 : 19. 1912. 



Ditches, banks of streams, moist open or wooded ground, southern Mexico and 

 Cuba to Paraguay. Originally described from Bolivia. 



34. Panicum laxum Swartz, Prodr. Veg. Ind. Occ. 23. 1788. 



Ditches, banks, moist woods, and wet savannas, Mexico and throughout the 

 West Indies to Paraguay. Originally described from Jamaica. 



35. Panicum stevensianum Hitchc. & Chase, Contr. U. S. Nat. Herb. 17: 498. 

 /. 76. 1915. 



Wet sand along ponds, Cuba and Porto Rico. Originally described from 

 Porto Rico. 



36. Panicum exiguiflorum Griseb. Cat. PI. Cub. 234. 1866. 



Savannas and moist sandy woods, Bahamas and Cuba. Originally described 

 from Cuba. 



37. Panicum stoloniferum Poir. in Lam. Encycl. Suppl. 4: 274. 1816. 



Moist shady places, Guatemala to Brazil and in Trinidad. Originally de- 

 scribed from Cayenne. 



38. Panicum frondescens Meyer, Prim. Fl. Esseq. 56. 1818. 



Moist woods, Mexico to Trinidad and Brazil. Originally described from 

 British Guiana. 



39. Panicum pulchellum Raddi, Agrost. Bras. 42. 1823. 



Moist shady places, southern Mexico and the Windward Islands to Brazil. 

 Originally described from Rio de Janeiro. 



40. Panicum scliiffneri Hack. Ergeb. Bot. Exped. Akad. Wiss. Siidbras. 11. 1906. 

 Wet shady banks and slopes, Porto Rico, Martinique, and St. Vincent, and 



from southern Mexico to southern Brazil. Originally described from Brazil. 



41. Panicum trichoides Swartz, Prodr. Veg. Ind. Occ. 24. 1788. Ilusi6n. 

 Damp shady places, often a weed in fields and groves, throughout the West 



Indies and in tropical America generally. Originally described from Jamaica. 



42. Panicum trichanthum Nees, Agrost. Bras. 210. 1829. 



Moist thickets and river banks, Mexico, and Cuba, Jamaica, Porto Rico, and 

 Trinidad, to Paraguay. Originally described from Mexico. 



43. Panicum parvifolium Lam. Tabl. Encycl. 1: 173. 1791. 



Wet savannas and margins of ponds and streams. Cuba, Jamaica, Porto Rico, 

 and Trinidad, and from Costa Rica to Paraguay. Originally described from 

 tropical America. 



44. Panicum cyanescens Nees, Agrost. Bras. 220. 1829. 



Swamps and wet savannas, British Honduras, Isle of Pines (Britton, Britton 

 d Wilson 14748), and Trinidad to Brazil. Originally described from Brazil. 



