MANUAL OF THE GRASSES OF THE UNITED STATES 



279 



Figure 374. — Parapholis incurva. Plant, X X A\ rachis joint and spikelet, X 5. (Trask, Calif.) 



1. Parapholis incfirva (L.) C. E. 



Hubb. Sickle grass. (Fig. 374.) 

 Culms tufted, decumbent at base, 10 

 to 20 cm. tall; blades short, narrow; 

 spike 7 to 10 cm. long, cylindric, 

 curved ; spikelets 7 mm. long, pointed. 

 O (Pholiurus incurvus (L.) Schinz 

 and Thell.)— Mud flats and salt 

 marshes along the coast, New Jersey 

 and Pennsylvania to Virginia; Cali- 

 fornia; Portland, Oreg.; introduced 

 from Europe. 



53. SCRIBNfiRIA Hack. 



Spikelets 1-flowered, solitary, lat- 

 erally compressed, appressed flatwise 

 against the somewhat thickened con- 

 tinuous rachis, the rachilla disartic- 

 ulating above the glumes, prolonged 

 as a very minute hairy stipe; glumes 

 equal, narrow, firm, acute, keeled on 

 the outer nerves, the first 2-nerved, 

 the second 4-nerved; lemma shorter 

 than the glumes, membranaceous, ob- 

 scurely nerved, the apex short-bifid, 

 the faint midnerve extending as a 

 slender awn; palea about as long as 



Figure 375. — Scribneria bolanderi. Plant, X X A \ rachia 

 joint and spikelet, X 5. (Suksdorf 217, Wash.) 



