28 PAMCACH.K. 



Culms 1-2 111. lu,ij;li, liai'T at tlu' nodes. Piiniclc contracted. 

 20-(5() em. long. The tawny hairs at the hase and s])arnijj:ly on the 

 outer <jlumes exeeediiiir tlio spikelets, spreading wlien drv and 

 mature; first and second empty glumes ecjual. ovate-ianeeohite. 

 linn membranous, tawny, round, or Hat on the bade. mm. long, 

 firsts-toothed, o-0-nerved, second mucronale. IJ-nervcd; third and 

 fourth red. hyaline, ovate-lanceolate. 1-3-nerved, third -i-o mm. 

 long, with a terminal straight awn nearly its own length, fourth 

 shorter. 2-tootiieil with a straight awn 1-2 cm. long; palea hyaline, 

 membranous, about 2 mm. long. Lodicules broad, truncate, ciliate, 

 0.?" mm. long. Stamens S. Styles distinct. 



New Jersey. Srribnci' ;3(J'S7 From Parker; Delaware, Caiihtj; 

 Fla. Cn-liss 3027. 



Dry or wot soils, Xew Jersey to Texas. 



3. E. brevibarbis Miehx. Fl. Bor. Am. 1 : S'j (1803). E. sar- 

 c/Ku'didcs sub-sp. brevibarbis Hack., D. C. Mouog. Phan. : 

 131 (188!»). 



Culms ratlier slender, tall, sparingly hairy at the nodes. 

 Sheaths often glal)rous; ligule 1-3 mm, long; blade 30-80 cm. 

 long. O-lo mm. wide. Panicle 15 cm, long, hairs seldom as long 

 as the spikelets. Spikelets 7 mm. long, first and second glumes 

 nearly alike. 3-1-iierved above, 2-toothed. third shorter, hyidine, 

 fourth still shorter. 2-cleft ])earing a twisted awn 2 cm. long. 



The plain resembles Atidntpoffon (C'/iri/spof/oii) nutans, except 

 that the sj)ikelets are sessile or ou short stilf pedicels. 



Virginia to Texas. 



Yah. Contortus (Nutt.) Chapm, Fl, S, States, 582 (1800). 

 Sacrhanini contortum Xutt, Gen. 1:00 (1818). E. eonfoiius Ell. 

 Bot. S. C. and Ga. 1 :40 (1810). E. sarrJiaroides Miclix. sub.-sp. 

 contortion Hack,, D, C, Monog, Phan, : 131 (1889). 



Culm 00-130 cm. high, leaf -blades smoother. Panicle 20-40 

 cm, long, narrower, thinner. The third glume white with two 

 slender teeth, the awu twisted at the base and twined like a cork- 

 screw aliove. 



North Carolina to Texas, 



