86 PANICACE.E. 



P. fur cat um viUosnni Vascy. 



Culms containin<( 3-linteniocles above the root-stock, 50-80 cm. 

 high. Sheaths compressed ; blades tliinly clothed with soft hairs, 

 flat, rough above, obtuse, 10-15 cm. long, 1 cm. wide. Si)ikes 

 2-3, narrow, 5-8 cm. long. Hpikelets about one third longer tlian 

 the internock'S of the rachis, ovate-lanceolate, less thtai 5 mm. long; 

 first glume 7-nerved, second 5-nerved, third 2.7 mm. long. 



Florida. A. II. Curtiss 35G5, ticketed P. Diyitaria Poir., 6'. I'. 

 Nash 50!). 



Swamps, North Carolina to Florida and other Southern States. 



;3. P. membranaceum Walt. Fl. Car. 75 (1788), not Lam. 

 (1701). l\ WaUen'anum Schultes, Mant. 2:1GG (1824). 



Culms decumljent, from creei)ing rhizomes, much branched, 

 20-GO cm. long. Sheaths rather loose; blades smooth, acute, -l-G 

 cm. long, 4: mm. wide. Si)ike.s 3-G, approxinuite, the lowest ones 

 included by the sheath, about 2 cm. long, rachis thin, 2.5 mm. 

 wide, clasping the spi Relets. Spikclets in two rows, in each row 

 overlapping for one half their length, oval, llattoned, nearly 2 mm. 

 long, first and second glumes thin, 3-uerved or with two outer ob- 

 scure nerves. 



Marylaiul. Srribner 35G4 from Canby; Tennessee, U. S. Dept. 

 Agricid. 28 from (Jattinger. 



New .lersey, Delaware, and Southern States. 



4. P. gracile Schlecht. Linnra, 2G: 134 (1853-55). 



Culms diffuse or decumbenr, much branched, 15-30 cm. high. 

 Sheaths rather loose, thickly pubescent; blade ovate-lanceolate or 

 linear-lanceolate, flat, thin, sparingly pubescent, 2-5 cm. long. 

 Spikes 3-S, scattered, 1-2 cm, long, the lowest ones included by the 

 sheath, rachis thin, about 2 mm. wide, flat or clasping the spikclets. 

 Spikelets in two rows, one each side the mid-nerve, those of each row 

 about 2 mm. apart, elliptical, 2.2-2.4 mm. long, first and second 

 glumes very thin, 3-nerved. 



Mexico, Pri)i()le 3343. 



In appearaiu^e considerably like /*. memhmuarcinn Walt. 



5. P. mucronatum Muhl. Cat. 8 (1813). Ccresia Jluitans Ell. 



