402 



POACE.T?. 



A<irost. G4, /. I'i, f. 1 (1H12). Ctenium raroIiin'tDunn I'anz. 

 Doiiksclir. Aciul. Mucricli. ;>11 (1S14). Motiorvru croinafint Kll. 

 Hot. S. (*. iV CJii, 1:77 (1817). Ctvnhim AmerUanuin Sprong 



Svst. 1 : '-J74 (IS'^r)), 'roOTIIACIIK-GKASS. 



IVrt'iiiiiiil; culms 50-100 cm. high, rough, with u tuft of old 

 (k'lul slu'iiths at the haso. HlacU-s narrow, involute, 5-12 vaw. long, 

 those of sterile .slioots longer. S|)ike 1 (rarely ;.'), 4-10 cm. 

 l(»ng. I'Mrst empty glunu; l-nerved, hyaline. '^ mm. long, includ- 

 ing the short point, second A mm. long, the nerves warty-glandular, 

 awn ahove the middle, about 4 mm. long, third 4 mm. long, ciliate, 

 ;}-nerved, short-awncd, divided at the apex, fourth or lloral glume 

 much like the third, ciliate. i\.h mm. long, enclosing a small hya- 

 line palea. The fifth glume (a lloral glume) 4.5 mm. long, ciliate, 

 IJ-nerved, a short awn hack of theai)ex; palea longer than its glume. 

 Next lloret snniller neutral, with a snndl glume ahove. Taste of 

 the plant very ])ungent. 



North Carolina, Mi-Ctirf/ti/; Alabama, .}fi)/n' ; l-'lorida. Ptihiirr 

 018, (Iurlis>tiovV .>>. Dept. Agri(!ul., also :54:i7: Mississi[)pi, Tnnii. 

 Low pin»'-l»arreiis, southern \'irginia and southward. 



S(i. (114). ChloRIS Swartz. I'rodr. :?5 (17SS). 

 EusturhiisDv^w Hull. Soc. riuloni. ;i: IHS (ISOO). 

 SrhuUcsia Spreng. I'ugill. 2: 17 (1815). PharvUitria 

 Willd. Steud. ^'onl. Kd. '.>, 1 : ;}5;i (1840): 2:;n;} 

 (1841). M((rn>.sfttr/ii/u Ilochst. A. \lwh. Tent. Fl. 

 Abyss. 2:408 (1851). Chhroides Fisch. Kegol- in 

 Iiul. Sem. Ilort. Petroj). 28 (I8(i;{). llrtcrulepis 

 Ehrenb. Hoiss. Fl. Orient. 5:554 (1881). 



8pikelcts 1-flowered |or 2-'.5- flowered], sessile, 

 crowded in 2 rows on one siile of a rachis, rachilla 

 arti(!ulate above the lower glumes, extending beyond 

 the flower, bearing a glume (or male flower). The 

 tw'o lower glumes empty, jjersistent, unequal, keeled, 

 narrow or very narrow, acute, mueronate, rarely 

 Spikt'U't. (Scril)- obtuse or truncate, or the second one with a short 

 "*^''^ awn; floral glume narrow or broad. l-IJ-nerved, 



acute, obtuse, emarginate, or with two short points, the mid-nerve 



Fiu.73. 

 ('/iloris adiata. 



