HITCHCOCK AND CHASE TROPICAL NORTH AMERICAN PANICUM. 517 



Spikelets 2 mm. or more long; panicles open. 



Blades erect, firm; spikelets turgid, strongly nerved; 

 plants grayish olive green; spikelets turgid, 

 blunt 90. P. roanokense. 



Blades spreading; spikelets not turgid, 2.2 mm. or more 

 long, pointed; sheaths bearing pale glandular 

 spots 89. P. yadJdnense. 



87. Panicura nitidum Lam. 



Panicum nitidum Lam. Tabl. Encycl. 1: 172. 1791; Contr. U. S. Nat. Herb. 15: 

 183. 1910. 



DISTRIBUTION. 



Moist ground and "wooded swamps, 

 southeastern United States, Bahamas, 

 and Cuba. The type specimen from 

 [South?] Carolina. 



Bahamas: Great Bahama, Golden 

 Grove, Britton & MillspaugJi 

 2736. 

 Cuba: Sierra Nipe, Shafer 2999, 



3001 . Fig. 113.— Distribution of P. nitidum. 



88. Panicum multirameura Scribn. 



Panicum multimmeum Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 19: 2. 1900; 

 Contr. IT. S. Nat. Herb. 15: 185. 1910. 



" DISTRIBUTION. 



Banks and dry open ground, 

 southern Mexico to Guatemala; also 

 in Jamaica. The type specimen 

 from Jalapa. 



Veracruz: Orizaba, Bourgeau 

 2383, Smith 593, Amer. Gr. 

 Nat. Herb. 98. Jala.'pa, Hitch- 

 cocl 6610, 6639, Pringle 7882, 

 8339a, 9209, 9210. 



Fig. 114. — Distribution of P. muUiramcum. 



Guatemala: Cobdn, Tiirckheim II. 1322, 

 Jamaica : Bull Head Mountain, Hitchcock 9532. 



/ 89. Panicum yadkinense Ashe. 



Panicum yadkinense Ashe, Journ. Elisha 

 Mitchell Soc. 16: 85. 1900; Contr. U. S. 

 Nat. Herb. 15: 195. 1910. 



distribution. 



Moist woods and thickets, southeastern 

 United States lo Mexico. The tjT^e speci- 

 men from North Carolina. 



Puebla: Without locality, Nicolas in 

 1909. 



Fig. 115.— Distribution of P. yadkinense. 



