408 POACE.E. 



y. C. Swartziana Doell. Mart. Fl. Bras. 2: Part 3, G8 (1818). 

 a ])etnBa Sw. Prod. 35 (1788). 



A tufted glaucous pereunial, 30-60 cm, high. Blades obtuso, 

 5-10 mm. long, 4-C mm. wide, cross-veins ai)])arent, the uj)i)er 

 0.5-2 mm. long. Si)ikes 3-8 in number, 4-i em. long. Empty 

 glumes not extending to the apex of the lloret, white, hisi)id, 1- 

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

 longer, oblong, emarginate, with a short i)oint, lloi'et oval, bearded 

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

 floral glume coriaceous, 3-ucrved, hispid on tlie back and margins, 

 entire, mucromite 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 lloral glume. 



Florida, Curtiss 34-43, Palmer G17, Hall 775. 



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

 Eustachys glauca Chapm. Fl. S. States, 557 (18G0). 



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

 wide, obtuse, some of the lower 30-'200 cm. long, the ui)per less 

 than 1 em. 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 Horet, 1 -nerved, flrst 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 nuiture, mid- 

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

 iis long as its glifme, terminal empty glume brown, truncate, mostly 

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



Florida, Cnrtiss 3444. 



Brackish marshes. West Florida. 



87. (176). Chloropsis Hack. Engl. & Prantl. Pfl. 3:59(1887- 

 93). Trirhloris Fourn. Benth. Journ. Linn. Soc, 19:102 (1881). 



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

 one 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-uerved, 3-awned, the awns long, straight, subuquul, or 



