402 



POACE^. 



Agrost. 64, t. 13, f. 1 (1812). Ctenmm carolinianwn Panz. 

 Denkschr. Acad. Muench. 311 (1814). Monocera aromatica Ell. 

 Bot. S. C. & Ga. 1:77 (1817). Ctenium Americanum Sjjreug 

 Syst. 1:274 (1825). Toothache-grass. 



Perennial; culms 50-100 cm. high, rough, with a tuft of old 

 dead sheaths at the base. Blades narrow, involute, 5-12 cm. long, 

 those of sterile shoots longer. Spike 1 (rarely 2), 4-10 cm. 

 long. First emj^ty glume 1-nerved, hyaline, 2 mm. long, includ- 

 ing the short point, second 5 mm. long, the nerves warty-glandular, 

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

 3-nerved, short-awned, divided at the apex, fourth or floral glume 

 much like the third, ciliate, 5.5 mm. long, enclosing a small hya- 

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

 3-uerved, a short awn back of the apex ; palea longer than its glume. 

 Xext floret smaller neutral, with a small glume above. Taste of 

 the plant very pungent. 



North Carolina, McCarthy; Alabama, Molir ; Florida. Palmer 

 618, C'wrfi.s-s for U. S. Dept. Agricul., also 3437; Mississippi, Tracy. 

 Low pine-barrens, southern Virginia and southward. 



86. (174). Chlokis Swartz. Prodr. 25 (1788). 

 EustacliysJya&Y.l^wW. 8oc. Philom. 2:188 (1800). 

 Schultesia Spreng. Pugill. 2: 17 (1815). Phacellaria 

 Willd. Steud. Nom. Ed. 2, 1:353 (1840); 2:313 

 (1841). Macrostachtja Hochst. A. Eich. Tent. Fl. 

 Abyss. 2:408 (1851). Chloroides Fisch. Eegel. in 

 Ind. Sem. Hort. Petrop. 28 (18G3). Heteroleins 

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



Spikelets 1-flowered [or 2-3-flowered], sessile, 

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

 articulate above the lower glumes, extending beyond 

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

 two lower glumes empty, persistent, unequal, keeled, 



Fig. 73. narrow or very narrow, acute, muci'onate, rarely 

 Ghloris adiata. J » ' ' j 



Spikelet. (Scrib- obtuse or truncate, or the second one with a short 



"^'^■■' awn; floral glume narrow or broad. 1-3-nerved, 



acute, obtuse, emarginate, or with two sliort })oint.s, the mid-nerve 



