516 



CONTKIBUTIONS FROM THE NATIONAL HERBAEIUM. 



84. Panicum arenicoloides Aehe. 



Panicum arenicoloides Ashe, Journ. Elisha Mitchell Soc. 16: 89. 1900; Contr. U. S. 

 Nat. Herb. 15: 173. 1910. 



Fig. 110. — Distribution of P. arenicoloides. 



DISTRIBUTION. 



Sandy pine woods, southeastern 

 United States; also in Guatemala. 

 The type specimen from North Caro- 



Guatemala: Cuesta de Peinha, 

 between Gualan and Copan, 

 Fittier 1805b. 



85. Panicum ovinum Scribn, & Smith. 



Panicum ovinum Scribn. & Smith, U. S. 

 Dept. Agr. Div. Agrost. Circ. 16: 3. 1899; 

 Contr. U. S. Nat. Herb. 15: 174. 1910. 



DISTRIBUTION. 



Open prairie and meadows. Southern 

 States and in Veracruz. The type speci- 

 men from Texas. 



Veracruz: Hacienda de la Laguna, 

 near Jalapa, Schiede (Berlin Herb.). 



Fig. 111.— Distribution of P. ovinum. 



86. Panicum. neuranthum. Griseb. 



Fig. 112. — Distribution of P, neuranthum. 



Panicum neuranthum Griseb. Cat. 

 PI. Cub. 232. 1866; Contr. U. S. Nat. 

 Herb. 15: 175. 1910. 



DISTRIBUTION. 



Moist savannas, Florida and Cuba. 

 The type specimen from Cuba. 



Cuba: Handbana, Wright 3453 

 in part. Without locality, 

 Wright 3454a. 



DICHOTOMA. 



Nodes, at least the lower, bearded; spikelets pubescent. 



Fruit slightly exposed at maturity; upper sheaths viscid- 

 spotted; autumnal form erect or reclining 87. P. nitidum. 



Fruit covered at maturity; sheaths not viscid-spotted; 

 autumnal form decumbent, with flabellate-fascicled 



branches 88. P. multiravieum. 



Nodes not bearded; spikelets glabrous. 



Spikelets not over 1.6 mm. long; panicles narrow; plants 



glaucous bluish green 91. P. caerulescens. 



