522 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
100. Panicum erectifolium Nash. 
Panicum erectifolium Nash, Bull. 
Torrey Club 238: 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. 
‘K 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: Gual4n to Copan, 
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. 
Spilcerets sto 16 mmm. Longe. See eee ee ele oe ao? aes portoricense. 
Spikelets:2 mamy Lomas. os is 1h Meee ee beer sice yest Lome ee 103. P. lancearium. 
102. Panicum portoricense Desv. 
Panicum portoricense Desv.; Hamilt. Prodr. Pl. Ind. Occ. 11. 1825. ‘‘Herb. Prof. 
Desy. Porto Rico.’’ We have been unable to find the type of this and in the Revision 1 
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 pauciciliatum Ashe, Journ. Elisha Mitchell Soc. 16: 87. 1900; Contr. 
U.S. Nat. Herb..15: 272.1910. 
1 Contr. U. 8S. Nat. Herb. 15: 331. 1910. 
