188 



Fig. 182. CHXORIS PETRiEA Sw. Prod. Yeg. Ind. Occ. 25. 1788. [Eustadiys 

 petrxa Desv. Nuov. Bui. Soc. Philom. 2 : 189. 1810.) SEASIDE FINGER- 

 GRASS.— A creeping, glaucous perennial 3-11 dm. (10-3^°) high, with obtuse, 

 flat leaves and three to eleven. slender spikes 4-7 cm. { li'-3') long. Leaf-blades 

 1-3 dm. (4'-12') long, .5-10 mm. {2^"-b") wide. Spikelets (a, 6) about 2 mm. (1") 

 long; glumes 4, the outer ones (d) broad; the first glume acute, about three- 

 fourths as long as the second, hispidulous, 2-toothed at the apex, the awn about 

 0.5 mm. (i'O long; third glume (c, e) with a short awn; fourth glume rounded 

 at apex,awnless. The palea is shown by /.—North Carolina to Florida and 

 southeastern Texas. (West Indies and Central ani South America.) March 

 to October. 



