518 POACE.E. 



Brizopyrum Presl, Eel. Hfenk. 1: 280 (1830), not Link. DischU& 

 Phil. Sert. Mend. Alt. 51 (1871). 



Sjiikelets several-flowered, dioecious, shortly jiedicellate in a nar- 

 row panicle, often reduced to 2 or 3 spikelets, rachilla glabrous, 

 articulate between the fertile florets only; outer empty glumes 

 narrow, keeled, acute; floral glume firm, broader, keeled, obscurely 

 many-nerved, all acute, unawned; palea folded, the keels very 

 prominent or narrowly winged. Stamens in the male flowers 3,^ 

 ovary rudimentary or 0; staminodia in tlie female flowers very rare. 

 Ovary pedicellate, glabrous, tapering into 2 rather long styles with ex- 

 serted. stigmas. Grain obovoid or elliptical, free, with a thick spongy 

 pericarp. Eigid grasses, having creeping rootstocks. Bryzopyrum 

 Presl has been used as a generic name for those with perfect 

 flowers. The genus consists of a single species, usually maritime, 

 which is very variable and has been often separated into 4 or 5^ 

 species. It has a wide range in Xorth America, both along the sea-^ 

 coast and. on saline or alkaline lands ; also found in Australia. 



1. D. spicata (L.) Greene, Bull. Calif. Acad. 2:415(1887). 

 Uniola spicat a 1j. Sp. PL 71 (1753). D. maritima Eafin. Journ. 

 Phys. 89:104 (1810). Brizopijrum spicatum Hook. & Arn. Bot. 

 Beech. Voy. 403 (1840). B. Americanum Link, Hort. Berol. 1 : 160 

 (1827). 



Culms rigid, much-branched, leaf}', 15-60 cm. higii, from wiry 

 rootstock. Leaves 8-15, sheaths longer than the internodes ; bladea 

 5-10 cm. long, narrow, rigid, very acute or pungent-pointed, 

 usually distichously spreading. Panicles slender to ovoid, 3-8 cm. 

 long. Pistillate spikelets 8-16 mm. long, flat, but rather thick, 

 4-13-flowered; staminate spikelets 8-18 mm. long, on slender pedi- 

 cels, 6-18-flowered; empty glumes straw-colored, first 2-3 mm., 

 second 4 mm. long; floral glume of sterile spikelets 3-5 mm. long, 

 of fertile spikelets 5-6 mm. long. 



New Jersey, Brinton for L". S. Dept. Agricul. 621; Delaware, 

 Canhy; Connecticut, Hitchcock; North Carolina, McCarthy; 

 Florida, Simjjson; Texas, Xealley; Mexico, Palmer 43 ; Minnesota, 

 Ilolzinger 38; Montana, Anderson 56; Oregon, Cusick 1319, Howell; 

 Southern California, Parish 852, Palmer. 



