No. 49. 

 ORCUTTIA CALIFORNICA Vm.sc.v, Hull. T.pit. Cliih. xiii. L'lO. 



Plant iuiiiuiil, ill low, s]»readiiif;' clnstiMs. 



(hilms f;('iiicul;ite. spreading', hraiicliiiii;-. sli^lilly liairv. - to 4 indies loiij;-. 



Lcfircs of culm - or ;}; slieaths oiicii. soiiicwliat iiillalcd, striate, sjiarscly liairy, 

 about equaling;' the iiitcriioilcs; hiades Hat or folded. I inili long or les.s: ligulf obso- 

 lete. 



Iiifiorcscence a simple panicle about 1 iiuli loui;-. of 1 to .s se.ssile spikelets, inter 

 riipted below, crowded above, often but ;i sinj;le pair of eMi|)ty ybniies for a eluster of 

 ;J or more u)tper spikelets. 



Sjyikelets compressed, broadly ovate, 12- to 2(t-flowered, -i to 5 lines long; emjity 

 glumes oblong, convex, sparsely pubescent, 1 to 2 lines long, with usually .'! acute, 

 .'5-nerved lobes at the ajiex, the outer lobes longer; lioral glume oblong, convex, sear- 

 iousniargined, sparsely puliescent, li to 2h lines long with .~> narrow, acute, .'5-nervcd 

 lobes, the middle lobes longer; palet oblong, erosely -Itootlied at tlu; apex, thin, 1.^ to 

 2 lines long, with 2 rigid green keels; internodes of racliilla nearly smooth, rj line long, 

 not extending 1-eyond the base of the upper tlon^t.; stamens .'?. 



Plate XLIX; a, plant, natural size; b, cluster of spikelets enlarge<l about 7 

 times; e, first emjity glume; il. second eiii])ty gjiiine: <■. tioral glume; /", jialet; i/, 

 stamen and pistil. 



Northern Lower ('alifornia near tiie line :ind prol)al>l.\ extending acro.ss the bouii- 

 dai\ into the ITnJted States. 



