586 POACE.E. 



Var. pauciflora Scribn. ; Yase}', Cat. Grasses U. S. 90 (1885),, 

 without description. Spikelets 1-2-flowered. 

 Oregon, IIowcII. 



2. F. Myuros L. Sp. PL 7-i (1753). Tulpia Mywms Gmel. 

 Fl. Bad. 1:8(1806). 



Culms slender, smooth, geniculate or erect, 30-80 cm. high. 

 Sheaths smooth, longer than the internodes; ligule less than 1 mm. 

 long; blades of the culms 3-5 in number, erect, slender, 6-12 cm. 

 long. Panicle narrow, 8-20-35 cm. long, rays scabrous, triquetrous 

 in twos and threes below, appressed, the longest racemose, G-12 

 cm. long. Spikelets on stout pedicels, linear, 5-8-flowered, 8-10 

 mm. long besides the awns, joint of rachilla a little more than 1 mm» 

 long; first glume 2 mm. or much less in length, second involute, 

 lanceolate, 4-6 mm. long; floral glume scabrous, involute, acuminate, 

 4-6 mm. long, besides the awn, 5-18 mm. long; palea lanceolate, 

 scabrous on the keels, nearly as long as its glume, bearing 2 very 

 short awns. Stamen 1. 



Pennsylvania (Philadelphia, ballast grounds), Srrihiier 3503 

 from Burk; Virginia, Curtiss; Oregon, Howell; California (Sau 

 Bernardino), Parish 6, 55. 



Introduced from Europe and naturalized. 



3. F. octoflora Walt. Fl. Car. 81 (1788). F. hromoides Michx. 

 Fl. Bor. Am. 1 : 66 (1803). F. setacea Poir. Encyc. Suppl. 2 : 638 

 (1804). F. fenella Willd. Enum. 1 : 113 (180!t). 



An erect slender annual or biennial, culms sparingly branched 

 on large jilants, 20-40 cm. high. Sheaths shorter than the inter- 

 nodes, sometimes pubescent; ligule about 1 mm. long; blades of the 

 culm 2-5 in number, erect, slender, mostly 4-7 cm. long. Panicle 

 simple, erect, 5-10 cm. long, narrow or spreading at the base, rays 

 in pairs or single, the longest 2-4 (rarely 7), cm. long. Spikelets 

 flat, oval, 6-10 mm. long, 7-13-flowered, often becoming brown 

 when old, joint of raeliilla 0.5-0.7 mm. long; empty glumes invo- 

 lute so as to appear subulate, first 3 mm. long, second about 4 mm. 

 long; floral glume convex, involute, acuminate, scabrous, nerves 

 ol)scure, 3-4 mm. long besides the awn, which is 1-7 mm. long: 

 palea lanceolate, a little shorter than its glume. Stamens 2. Plants. 



