AdIfosriDK.K 311 



7-0 (Mill, iliiim. Spikt'lot^ iiiinnwiy ollipticiil, niinuti'ly .sculiroiirt; 

 (•iii|»ty iiiiiiiu's wliiti", till' ti|» of tlu' tlori't yi'Howi.sli, aliout :i mm. 

 Iniiir, tli'st and sofoiid ;j:lmiios sub('<|uul, very obscurely iiorvcij. alutiit 

 2 mm. loiiir: llorct nwiiK'ss. mimiicly piilK'scoiit, with a small hairy 

 niUud l>e!o\v. Aiitlicrs 'i mm. lon^'. 



Mexico. /'/•//////<• 417. Pnlmvr 'l\. 



Calit'oriiia t(» Arizona ami Mexico. 



'I'his forms, in .Mexico, tall Imnches alonj;" stronms, and incliar- 

 ncter and qnalily rescmhlis S/ioro/io/ifs Wriiihlii, wliicit ranks as 

 fairly <rooil. 



H. E. mutica l{ii|.r. Mull. Acad. Unix, '.i: pari •', •.•:5(i (lSI-2). 



A stout erect tufted ;;rass. DO-I.')!) em. lii;:li. culms compressed, 

 without cavity, very hard. Slu-atha lon;;er than tlie internodes: 

 ]i;j;ule a mere rini;-; blades hard. rou;.di. conduplicatc, the lower 

 0-15 cm. lonir. /i-d mm. wide; those of tlip culm tiO or mure cm. 

 lonj;, the blade aliruptly narrowed where it h'aves the sheath, apex 

 lon^', attenuate. Panicle exserted, erect, ')()(>() cm. loii,i,', '>\->i ••m. 

 wide, compact with numerous erect branches, some of which arc ].'> 

 em. long. Spikelets short-awned or awnless, linear, acute, '2.'.' mm. 

 long; empty glumes erpuil, nearly 'I mm. long, elliptical, soft, the 

 nerves very obscure; floral glume and paloa eipial, clli|)tical, acute, 

 a little longer than the empty glumes, containing a few very short 

 hairs. 



There are some spikijlets apparently sterile and about 3 mm. 

 long, with a lloret half as long, containing a very .short awn. 



Mexico (Jalisco), Ptthiicr 5 IS. 



0. E. anomala S(;ril)n. ined.; distributed as Mvlini (?) nnoinahr 

 Seribn. n. sp. 



A tufted grass, OO-SO cm. higli. Sheaths longer than the in- 

 ternodes; ligule firm below, white and very thin above, :J mm. long; 

 blades 4-5. scabrous. Hat, the ti})S involute-liliform,".M)-;}Oem. long, 

 4-0 mm. wide, the upjjcr one filiform, 5 em. long. Panicle erect, 

 exserted, lanceolate, interrupted below, IS-^.') cm. long, rays erect, 

 in threes and fours, the longest 5-7 cm. long, tlower-bearing for 

 most of its length, the upper 1-3 cm. long, bearing small spikelets 

 in dense clusters. Spikelets pur])le, 1-llowered, with no rudiment of 



