No. 12. 

 STIPA PARISHII Vitsey, I'.Dt. Caz. vii. 32. 



Plant pcreiinial, tutted, somewliat bulbous, with coarse, woolly roots. 



Cubn erect, simple, terete, his])id, thickly clothed at base with i)ersistent sheaths, 

 rarely naked above, 1 to li feet hi^li. 



Leares of the culni 4 or 5 crowded below with short, overlai)piii^'' smooth or scab- 

 nms sheaths, white-hairy at tlic throat, ami diverjreut (•oiida])li(ate or involute blades, 

 smoiith l>elo\v and hispid above. i> inches lonif; up]iei- sheaths longer and vaginate, 

 inclosini; the lower |»art of tlic panirli'. witli a nariow. convohitc nearly erect blade, 

 .! inches lonji; lijiide very short. 



/H//f)(r.<((Y'n<r a rather open, erect i)anicle o to s inches lonfj; branches in twos or 

 threes, 2 inches or less long, bearing ."> to 111 sjtikelcfs on slender brauchlets. 



Spilclrts Itlowered, <> to 7 lines long; empty glumes spreading, lanceolate, slender- 

 pointed, concave, rather thick, smooth; first glnme ;i-nerved fi to 7 lines long; second 

 glume a line shorter and .">-nerved. the lateral nerves often obscure; sti])e curved, 

 .slender, acute, yellow-bearded at the middle, J, line long; lloret spiiidle-shai)ed, 2.1 to .'J 

 lines long, less than J line thick; floral glume bidentat* at apex with two naked, 

 hyaline teeth ?, line long, densely clothed elsewhere with stifi'. white hairs 2 lines long, 

 charlacc()ns, obscurely ."> nerved; awn smooth below, scabrous above. !• lines long; 

 ]ialct oblong, barely acute, boat-shaped, pubescent, with long hairs between the 2 

 nerves, ailhcrent to the grain; lodicules narrow, 1 line long: anthers naked; grain 

 spindle-shaped, tapering to the beaked apex, nearly terete, light brow n or olive, 2 lines 

 long. i\ line thick. 



Plate XII; n, .spikelet enlarged twice; h, empty gbunes; r, liurct : </, floral 

 glume opened showing the teeth at the apex: r. i)alet, side and bai'k views. 



Mountains of southern and Lower California. 



