522 



CONTRIBUTIONS FEOM THE NATIONAL HEEBAEIUM. 



100. Panicum erectifolium Nash. 



Panicum erectifolium Nash, Bull. 

 Torrey Club 23: 148. 1896; Contr. 

 v. S. Nat. Herb. 15: 256. 1910. 



DISTRIBUTION. 



Moist pine woods, southeastern 

 United States and Cuba. Type speci- 

 men from Florida. 

 Fig. 126. — Distribution of P. erectifolium. 



Cuba: Vuelta Abaja, Wright 3462. Laguna Santa Maria, Britton & Gager 7170. 



X' ENSIFOLIA. 



101. Panicum albomarginatum Nash. 



Panicum albomarginatum Nash, Bull. Torrey Club 24: 40. 1897; Contr. U. S. Nat. 

 Herb. 15: 260. 1910. 



DISTRIBUTION. 



Moist sandy woods, southeastern 

 United States, Cuba and Guatemala. 

 Type specimen from Florida. 



Guatemala: Gualdn to Copan, 



Pittier 1805a. 

 Cuba: Between Sumidero and 

 Pinar del Eio, Le6n 3466. 

 Herradura, Hitchcock 555. 

 Isle of Pines, Taylor 32. 



Fig. 127. — Distribution of P. albomarginatum. 



LANCEARIA. 



Spikelets 1.5 to 1.6 mm. long 102. P. portoricense. 



Spikelets 2 mm. long 103. P. lancearium. 



102. Panicum portoricense Desv. 



Panicum portoricense Desv.; Hamilt. Prodr. PL Ind. Occ. 11. 1825. "Herb. Prof. 

 Desv. Porto Rico." We have been unable to find the type of this and in the Revision * 

 placed it among doubtful species. Recent study of the grasses of Porto Rico, however, 

 leaves no doubt that Desvaux's description was drawn from a specimen in the autumnal 

 phase of P. pauddliatum Ashe, which is found to be common in the vicinity of San 

 Juan Bay, the region most likely to have been visited by early botanists. 



Panicum pauddliatum Ashe, Joum. Elisha Mtchell Soc. 16: 87. 1900; Contr. 

 U. S. Nat. Herb. 15: 272. 1910. 



1 Contr. U. S. Nat. Herb. 15: 331. 1910. 



iAty*^ 





