KKS'riX'KJ-:. 581 



rays 3-5 in hiilf-wliorls. oreot or asciMulinf:;, donsely llowerod, tho 

 loiigi'si 4 S ciii. long. Spikt'lt'ts ;5-5-llo\voiV(l, tlic longest joint of 

 rncliilla I nun. long; i'mi)ty gltunos ovmI, aciitt^ or olttnso, aliiiost 

 keeled. IJ-nerved, (Irst '1 '•) mm. long, seeoiul ;>-4 mm. long; lloral 

 glnme oval, seabrous. I}..")-!.') mm. long, .")-nerved, apex acute, 

 often irregularly tootiied ; jtaK'a ;'>.."» mm. long, narrow, '.'-lootliod, 

 shortly eiliate on the nerves. Allied to .1. Inniifoliit 'riinrber. 



So'ihiivr 'I;> from Tweedy; Wasliington (Casrade Mountains), 

 /Irandegrem:), ll!>(). 



J(j. A. unilaterale (Serihn.). /'ai/ inn'/u/rnilr Serih. int«d. 



A tufted glaucous |terennial, XM)-:>() cm. liigli, from ascouding 

 bases; culms smooth, rather stout, liigule acute, t-tJ mm. long; 

 lilad(>s of sterile shoots Hut or conduplicafe, soft, lleNUo.s(>, ST.' 

 em. long, 2 mm. wide, those of the culm ".' in number, the blades 

 shorti^r and widiM*. Panicle si)ikelike, dense, oval-lanceolate. .")-•') 

 em. long, rays stout, very short, in throes, fours, or lives. Spikelets 

 oval or linear, O-T-ilowered, T-lO mm. long, joint of rachilla 1 mm. 

 long; empty glumes oval, obtuse or mucronate, subearinate; lirst ;!- 

 lU'rved, ;).r)-4 nnn. long, .second Il-.'i-nervi'd, 4-r» mm. long; lloral 

 glume 4-.") mm. long, nearly smooth, chartaceous, subearinate, oval. 

 abrnj)tly or irregularly acute, mucronate; i)aleu liiu'ar, 4-r» mm. 

 long, drain lu-arly terete, "iJt mm. long, including thes])ongy apex. 



California (Santa Cru/,), ('. L. AiKlcrsmi. 



17. A. scabrella Thurb. S. Wats. I'.ot. Calif, '.'iino (ISSO). 

 Poa srahrvlhi Vasey, ('at. Crass, l'. S. S4 (ISS.')). 



A slender perennial, 40-70 em. high, seabrid. IMades of sterile 

 shoots Hat or eonduplieatci, 12-'20 em. long, 1-'.' nun. wide, curved; 

 leaves of the eulm 'i.-\\, ligule 5-1'.* mm. long, aeute; bhules r»-7 tin. 

 long. Panicle narrow, r-J-I.') em. long, rather dense, rays in pairs, 

 \\\v longest 5-7 em. long, branching and mostly llower-lH'aring lo 

 lh(^ base. S])iki'lets 5-t! mm. long, 3-5-llowered, joint of raehilla 

 1 mm. long; empty ghnnes IJ-iu-rved, lirst about '-3.5 mm., si'eontl 

 about ;5 mm. long; floral glume W-W.^l mm. long, o\al. rough-hairy 

 on the lower part of the nerves, apex denticulate, often unieronate; 

 piilea but little shorter. 



Lower California, Miss F. K. Fish for Nat. Mus. 



