(308) 



per carinate with involute margins. Ovary 

 stipitate; caryopsis obovate, i'ree. — 1^. Creep- 

 ing. Leaves rigid, distichous, spreading. 

 Panicle spicate-racemose. 



1. B. MARITIMUM Raf.—San Francisco. 

 Salt marshes. Summer. 



26. Lophochlsena Nees. 



Spikelets oo-flowered. Flowers ^ . Rachis 

 articulate, deciduous. Glumes 2, shorter than 

 the flowers, upper 3-nerved, lower smaller, 1- 

 nerved. Palets 2 : lower chartaceous, co-nerved, 

 membranaceous at the apex, 2-lobed, aristate 

 from the cleft; upper complicate, chartaceous, 

 margin and apex membranaceous, 2-nerved, 

 2-carinate, margin dentate, apex emarginate. 

 Caryopsis compressed, 2-horned. Leaves short. 

 Panicle secund (one-sided), simply racemose. 



1. L. Californica Nees. — 0. Contra Costa. 

 Spring. 



27. Glyceria K- Br. 



Spikelets co-flowered. Glumes 2, obtuse, 

 the lower shorter. Palets 2 : upper 2-carinate, 

 lower concave, ovate, rotund, 7-nerved. Cary- 

 opsis free. Aquatics. Leaves flattened. 

 Branches of the panicle semi-verticillate. 



1. G. PAUCIFLORA Presl. — 0. San Fran- 

 cisco. Spring. 



