No. 2. 

 PANICUM URVILLEANUM Ktli. Itcv. (Irani, i. :{.% 402: ii. t. 11.5. 



riant pcieiinial from .stioiiii roottstock. 



6'M/wn'rect, .siniplc, nciirly smooth, tcrcti', l.i to 2 feet lii^li. tlie short jointed base 

 covered with weather worn sheaths. 



Lean's of culm 4 to 7; sheaths loose and overlaiijjinji, retrorse-velvety : blades 

 at length convolute, slender ])ointed, striate, glabrous, or pubescent lieneath near 

 the base, upi)er one e.xceeding the panicle, 12 to is inches long: ligule a line ot soft 

 hairs i line long. 



Injiorcxvi'iHT an open panicle <> td 10 inches lr)7ig and half as wide; ascending 

 branches subverticillate or scattered, racemose and (lower-bearing neai- the cmls. or 

 shorter ones tlower-beai'ing throughout. 



iSi>il;rl(t.s ])edicellate, 2-tlowered, ovate, acute, 2.;! to ■'! lines long; empty glumes 

 broadly ovate, acute, convex, silky- villous; first glume 7-nerved, 2 to 2^ lines long; 

 secoiul glume l.H-to 15-nerved and one third longer; tloial glume of staminate flower 

 ]>ul)escent, 1 1-to l.'i-nerved, -^ lines long; ])alet lanceolate, thin, '-] lines long; floral 

 glume of pistillate flower hardened, sinootli exce])t the ciliate margins, 5-ncrved, 2 

 lines long; ]ialet smooth, 2-nerve(l, 2 lines long. 



Plate II; «, .spikeUit slightly s])read and enlarged about 4 times; h, lirst empty 

 glume; c, .second eni])ty glume; '/, floi-al glunu- of perfect floret; <>, palet of perfect 

 floret; /, floral glunu' of sterile tloiet: //, |)alet of sterile floret. 



Southern California and Aiizona. I'lainly distinguished i)y its large wooly spike- 

 lets. 



