182 



POACE.E. 



1. P. Canarieksis L. Sp. PI. 54 (1753). Cakary-grass, 

 P. avicularis Salisb. Prod. 17 (1796). P. ovata Moench, Meth. 

 208 (1794). P. aquaiica Belile, Boiss. Fl. Orient. 5:471 ( ). 



Au erect leafy annual, 30-60 cm. high. Ui^per sheaths in- 

 flated; ligule 4 mm. long; blades 20 cm. long, 5-10 mm. wide. 

 Spike ovoid, pale green, 4 cm. long, Spikelets nearly 6 mm. Icng. 

 broadly ovate; lower glumes 5-6 mm, long, white, membranous,, 

 with 3 green nerves and a very broad or winged keel, third and 

 fourth glumes lanceolate, half as long as the floral glume ; floral 

 glumes acute, three-fourths the length of the lower glumes, 5- 

 nerved. 



Massachusetts, Beal 30; District of Columbia, McCarthy; 

 Michigan, C'/«r^• 4947; Dakota, Duff ey; Arizona, Tourney 7 5d. 



Introduced from Europe. Kaised for canary-birds. 



2, P. intermedia Bosc. Poir. Encycl. Suppl. 1:300 (1810). 

 Southern Keed. Caxary-grass. Gilbert's Eelief-grass. 

 Stewart's Canary-grass. California Timothy. P. Carolini- 



ana Walt. Fl. Car. 74 (1788). P. 



angustata Nees, Agrost. Bras. 2: 



391(1829), P. m icrostachya D C . 



Cat. Hort. Monsp. 131 (1813). P. 



Americana Ell. Bot. S. C. & Ga. 



1:101 (1817). P. arundinacect. 



Michx. Fl, Bor. Am. 1: 43 (1803). 

 An erect annual, 60-360 cm. 



high. Sheaths inflated; blades of 

 the upper leaves 0.5-2.5 cm. long. Spikes 2-3 cm. long, 13 mm. 

 diam. Spikelets 5 mm. long, oval when closed ; lower glumes acute, 

 membranous, with 3 green nerves and a broad-winged keel, third 

 and fourth glumes lanceolate, half as long as the floral glumes; 

 floral glumes acute, the length of the lower glumes. 



Texas, Jenney; Oregon, Hoioell; Arizona, Tourney, Pringle for 

 U. S. Dept. Agricul. 214, 



Var. angustata (llort.). P, a/i^wsteto Hort. Gryph. Schlecht^ 

 Linn. 24:187 (1851). 



Fig, 38. — Phalaris intermedia, 

 Spikelet. (Richardson.) 



