408 POACE.E. 



9. C. Swartziana Doell. Mart. Fl. Bras. 2: Part 3, 68 (1878). 

 C. petrcea Sw. Prod. 35 (1788). 



A tufted glaucous perennial, 30-60 cm. high. Blades obtuse, 

 5-10 mm. long, 4-6 mm. wide, cross-veins apparent, the upper , 

 0.5-2 mm. long. Spikes 3-8 in number, 4-7 cm. long. Empty 

 glumes not extending to the apex of the floret, white, hispid, 1- 

 nerved, first incurved, ovate, acute, 1 mm. long, second a fourth 

 longer, oblong, emarginate, with a short point, floret oval, bearded 

 at the base, brown, flat-compressed at the back, 1.7 mm. long; 

 floral glume coriaceous, 3-nerved, hispid on the back and margins, 

 entire, mucronate below the apex; palea brown, oval, 1.5 mm. long. 

 Grain ovoid, 3-sided, 1 mm. long. Terminal empty glume brown, 

 truncate, half included by the floral glume. 



Florida, Curtiss 3443, Palmer 617, Hall 775. 



10. C. glauca (Chapm.) Vasey, Cat. Grass. U. S. 61 (1885). 

 Eustacliys glauca Chapm. Fl. S. States, 557 (1860). 



A smooth glaucous annual, 1-1.5 m. high. Blades 7-8 mm. 

 wide, obtuse, some of the lower 30-200 cm. long, the upper less 

 than 1 cm. long. Spikes 8-20, umbellate, 5-10 cm. long. Spike- 

 lets 2 to each mm. of the spike; empty glumes curved, reaching to 

 the top of the floret, 1 -nerved, first obtuse, about 1 mm. long, sec- 

 ond truncate, cuspidate, 1.5 mm. long; floret ovoid. 1.7 mm. 

 long, floral glume brown, 3-nerved, coriaceous when mature, mid- 

 nerve hispid above the middle, obtuse, awuless; palea brown, oval, 

 as long as its ghmie, terminal empty glume brown, truncate, mostly 

 above the floral glume. Grain oval, 3-sided, 1 mm. long. 



Florida, Curtiss 3444. 



Brackish marshes. West Florida. 



87. (176). Chloropsis Hack. Engl. & Prantl. Pfl. 2:59(1887- 

 '93). Trichhris Fourn. Benth. Journ. Linn. Soc. 19:102 (1881). 



Spikelets 1, rarely 2-4-flowered, sessile, crowded in two rows on 

 'pne side the rachis, rachilla articulate above the lower glumes, ex- 

 tending beyond the flowers, terminating in a glume. Empty glumes 

 small, membranous, subhyaline, first often very narrow, acute, awn- 

 less or short-awned, second short-awned; floral glume membranous, 

 faintly 3-nerved, 3-awned, the awns long, straight, subequal, or 



