522 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
100. Panicum erectifolium Nash. 
Panicum erectifolium Nash, Bull. 
Torrey Club 23: 148. 1896; Contr. 
U.S. Nat. Herb. 15: 256. 1910. 
DISTRIBUTION, 
Moist pine woods, southeastern 
United States and Cuba. Typespeci- 
men from Florida. 
Fig. 126.—Distribution of P. erectifolium. 
Cusa: Vuelta Abaja, Wright 3462. Laguna Santa Maria, Britton & Gager 7170, 
ENSIFOLIA. 
101. Panicum albomarginatum Nash. 
Panicum albomarginatum Nash, Bull. Torrey Club 24: 40, 1897; Contr. U. 8. Nat. 
Herb, 15: 260, 1910. 
DISTRIBUTION, 
Moist sandy woods, southeastern 
United States, Cuba and Guatemala. 
Type specimen from Florida. 
GuaTEMALA: Gualéin to Copdn, 
Pittier 1805a. 
Cusa: Between Sumidero and 
Pinar del Rio, Leén 3466. 
Herradura, Hitchcock 555. 
Isle of Pines, Taylor 32. 
Fig. 127.—Distribution of P. albomarginatum. 
LANCEARIA. 
Spikelets 1.5 to 1.6 mm. long... 2.222.222.2200. 0 eee eee 102. P. portoricense. 
Spikelets 2mm. long...............2.0.0.0.02020202e eee e ee eee 103. P. lancearium. 
102. Panicum portoricense Desv. 
Panicum portoricense Desy.; 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. pauciciliatum 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 paueiciliatum Ashe, Journ. Elisha Mitchell Soc. 16: 87. 1900; Contr. 
U.S. Nat. Herb. 15: 272. 1910. 
? Contr. U. S. Nat. Herb. 15: 331. 1910. 
