44 Festuceae 



26. MONANTHOCHLOE Engelm. 



A creeping or stoloniferous grass with Btoul rigid 

 crowded leaves. Spikelets 2-3-flowered unisexual some- 

 what unlike usually sessile in t'a and concealed within 

 the leaf fascicles, the upper floral leaves becoming smaller 

 at length reduced to sheaths and resembling the outer 

 glumes. Flowering glumes membranous rigid obtuse or 

 denticulate. Palea 2-nerved included within the flower- 

 ing glume. Stamens in the staminate plants •".. Styles 

 in the pistillate plants distinct, elongated ; stigmas bar- 

 bellate. Grain free, included within the glume and 

 pa lea. 



1. M. littoralis Engelm. Culms firm, creeping or ascending; 

 leaves crowded, subulate, usually aboul 1 cm. long, conduplicate ; 

 flowering glumes 9-12-nerved. 



Occasional on salt marshes along the coast. San Pedro; San Diego. 



Am ndo Donax L. (Giant-Reed.) A tall reed-like grasswitb 

 hollow culms, broad Hat leaves and ample terminal panicles. In- 

 troduced from southern Europe and cultivated for ornament, 

 sometimes found as an escape. 



GYNERIUM ARQENTIOM Nees. (PAMPAS-GRASS.) Tall reed-like 



grass with solid culms,long narrow leaves and large showy plu- 

 mose panicles. Introduced from South America and cultivated for 

 ornamenl . 



27. ERAGROSTIS Beauv. 



Annual or perennial grasses with flai leaves and con- 

 tracted or open panicles. Spikelets 2-many-flowered, 

 more or less flattened. Glumes 4-many ; the 2 outer 

 empty, unequal, Bhorter than the flowering ones, keeled, 

 1-nerved or the Becond 3-nerved ; flowering glumes mem- 

 branous, keeled. .' I-ll el'Vi !< I . I'alea > 1 l< > Tt < • T tliall till' 



glumes, prominently 2-nerved or 2-keeled, usually per- 

 sisting "ii the rachilla after the glume has fallen. Sta- 



