FESTICEK. 569 



ule broad, obtuse, 5-7 nun. long; bla<les abont G in nunil)or, 

 smooth or scabrous below and on the mar-'ins. r.*-30 cmii. lonsr, G- 

 15 mm. wide. Panicle loose, oval, 15-20 cm. long, rays in twos 

 and threes, llower-bcariiig from near the middle. Spikelcts ellipti- 

 cal, -l-O mm. long. 4-(j-llowered, joint of rachilla 0.7 mm. long; 

 first entpty glume elliptical, 1-1.3 mm. long, l-nerved. acute, the 

 apex denticulate, second rhombi<'-oval, nearly 2 mm. long, ^-nerved ; 

 lloral glume 2-3 mm. long, 5-nerve«l, scubrid. sonu^times with one 

 more obscure nerve on either side, often broadly oval, obtuse, 

 irregularly tootheil; palea but little shorter than its glume. 



^lontana, Wil/ioins; Wasiiiugton, ISiiksdorf for U. S. Dept. 

 Agricul. 03, Ijikf. lliiiirll in 1886. 



British America to California. 



0. P. fluitans (L.) Kuntze, T82 (1891). Fesfiofr fiviffoislj. Sp. 

 IM. :5 (I To:}). ro,i Jliiiliiiix Sc(.p. Fl. Ciirn. Kd. 2, I : V^ (1:72). 

 a I yrer in fluitans If. lir. Prodr. 179 (181(»). J^erauxift ffnifmi.'^ 

 ]?eauv. Kunth, Kinim. PI. 1:3(>7, in Syn. (1833). Jli/i/ror/iloa 

 (lis/t/Hs Iliirtm. Gram. Skand. 8 (ISIO). Parrofera) fJte Dnnn- 

 iiniHdn Steud. Syn. Fl. (Jrani. 2S7 (18.").")). Ghjcevin. armninata 

 Scliur. Enum. PI. Transs. 781 (1800). (iJijceria tlorlinata Breb. 

 Fl. Norm. Fd. 3, 3r)4. (ilt/ren'a iii'nfirith(/<f Duni. Obs. dram. 

 Uelg. 107 (1S23). Ghjn'na hiihndo 'I'owns. Trans. Rot. See. 

 Fdiid>. 4:27 (1853). Glifrrritt inleynt Dum. 1. c. Ghjcrria 

 liiJiarca Godr. Fl. Lorr. 3: 1G8 (18(12). Glyrcrid jwdirvUnht Towns. 

 Ann. & Mag. Nat. Hist. (II.) 5:105 (1850). Gli/reriti jilirata Fries, 

 Mant. 3: 17G. G. spicafa Guss. Fl. Sic. Syn. 2: 784 (1845). 



Perennial, witli creeping rootstock; culms G()-150 cm. higli. 

 Slicatlis smooth, compressed; ligule broad, lacerate, 4-7-10 mm. 

 long: blades 5-G. flat, usually smooth, often floating, 15-25 cm. 

 long, 3-7-15 nun. wide. Panicle usually narrow, loose, 30-GO 

 cm. lojig, rays mostly in threes and erect, the longest usually about 

 10 (rarely 20) cm. long, bearing few si)ikelets. Spikelcts i)ale. 

 terete, except when in flower, erect, 1.5-2.5 cm. long, 6-20-flowered, 

 joint of rachilla 1.3 mm. long; empty glumes obtuse, hyaline or 

 membranous, l-nerved, first 2-:5.5 mm. long, ovate to linear, sec- 

 ond ellipticab 2.5-5 mm. long; floral glume sca'urid, oblong, 2.5-5 



