586 I'(JACE.E. 



Viir. pauciflora Scribii. ; N'liscy, Cut. Gmsses U. S. 00 (1885), 

 without ilescription. S[)ikolcts l-S-tlowercd. 



Oroiioii, llnicrll, 



'I. F. Myckos Ti. Sp. IM. 74 (irr):J). Vnlpia Jfi/nrHs riniol. 

 Fl. Had. 1:S(1S(h;). 



Culiiis .sIciKltT, sniootli, jLjoiiiculiito or cri'ct, i)0-80 cm. hi,i,di. 

 Shoatlis sinootli, longer tli;in tlio intcniotles; liifulo less tliiin 1 iiiiii. 

 long; bliidos of the cuhiis .'5-.') in iiunihcr, croct, slender, G-l"i cm. 

 loiiij:. Piiiiiclo narrow, 8-;i(>-:ir) ctri. long, rays scabrous, tri(|uctr()iis 

 in twos and ihn^cs below, approsscd, the longest racemose, (l-l".' 

 cm. long. S|)il\elet3 on stout jiedicels, linear, 5-8-flowere(l, 8-1 o 

 mm. long besides the awns, joint of rachillaa little more than 1 nun. 

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

 lanceolate, 4-G mm. long; lloral glume scabrous, involute, acuminate, 

 4-0 mm. long, besides the awn, 0-18 mm. long; palea lanceolate, 

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

 short awns. Stamen 1. 



Pennsylvania (I'hiladelphia, ballast grounds), Srrihner ;'.5(t.") 

 from Hurk; Virginia, Cid'tiffs; Oregon, Ilotrell; California (Sail 

 liernanliuo). Parish 6, 55. 



Introiluced from Europe and naturalized. 



3. F. octoflora Walt. VI Car. 81 (ir88). /: hromoi<]es Michx. 

 Fl. Bor. Am. 1 : GG (1803). F. svlumi Poir. Eucyc. Suppl. 2 : 638 

 (1S04). F. tviU'Ua Willd. Knum. 1:113(1 80!i). 



Au erect slender annual or biennial, culms sparingly branched 

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

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

 cidm 2-5 in number, erect, slender, mostly 4-7 cm, lojig. Panicle 

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

 in i)airs or single, the longest 2-4 (rarely 7), cm. long. Spikelcts 

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

 when old, joint" of rachilla 0.5-0.7 mm. long; emj)ty glumes invo- 

 lute so as to aj)pear subulate, first 3 mm. long, seciond about 4 mm. 

 long; (loral glume convex, involute, acuminate, scabrous, nerves 

 obscure, 3-4 mm. long besides the awn, which is 1-7 mm. long: 

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



