FKSTrcK.E. 649 



longest 3-5 cm. long, thinly flower-bearing for the whole length. 

 8pikelets 2-tlowore(l, tlie upper floret nulimeiitary; empty glunu's 

 sube<iual, ;} mm. long, the first a little the longer, botli .'J-iiervcd. 

 the lateral nerves merging into tlie midnerve above tlie middle; 

 floral glume subcarinate, smooth, 7-nerved, oval and subacute 

 when .spread, 3.7 mm. long; palea as long as its glume; the second 

 floret consisting of an obtuse floral glume nearly 2 mm. long and a 

 palea much shorter. Stamens 3 in number, 1.5 mm. long, 

 ("aliforuia, HoJnnder. 



32. P. Douglasii Nees, Ann. Xat. Hist. Scr. I, 1 : 284 (1838). 

 Poa Californira Steud. Syn. PI. Gram. 201 (1855). 



A slender smooth dicecious tufted perennial, 10-20 cm. higli, 

 with short slender creeping rootstocks. Leaves ol' sterile shoots 

 numerous, sheaths loose; ligule obsolete; blades of sterile shoots con- 

 duplicate, curved, 5 cm. long, 2 mm. wide, the extreme apex usually 

 oblique and obtuse, in cross-section oval or ("ircular, O.T-1 mm. 

 diam., 0-nerved. blades of the culm like those below, 1-5 cm. long, 

 usually extending to the spike or beyond it. I'anicle jialc gi'ccu, 

 dense, globose, ovoid or linear, 2-0 cm. long. 1.5 diuni. PisliUafe 

 spikelets compressed, oval, 3-G-flowered, 7-10 nun, long, joint of 

 rachilla 0.75 nmi. long, emjity glumes subequal, linear-lanceolate, 

 4.5-0.5 nun. long, 3-nerved, scabrous on the keel; floral glume oval 

 or ovate, acute, 5.5-7 mm. long, finely pubescent on the lower half 

 of the keel and marginal nerves; palea linear, 2-toothed, ciliate on 

 the keels, 4.7-5.5 nim. long. Slauiinale spikelets 5 mm. long; empty 

 glumes 2.5 mm. long, floral glume 3.5 mm. long; palea as long as 

 its glume. 



California, Jones 3258. 



California, along the seacoast in loose sand. 



33. P. glumaris Trin. :^[em. Acad. St. Petersb. (VI.) l:;57a 

 (1831). I\ Kingii S. Wats. l?ot. King's Exp. 387 (1871). 



A more or less glabrous, strict, very stout dicecious perenjiial, 

 30-00 cm. high, and a diameter of the culm of 5-0 mm. near tlie 

 base: rootstocks creeping. Ligule nearly obsolete; blades tirin. 

 smooth or scabrid. usually conduplieate. 10-30 cm. long, 8-12 mm. 

 wide, those of the culm 3 in number, 2-8 cm. long. Panicle 



