766 GRAMINEJE FESTDCA 



places near Portland Oregon. 



F. MYUBUS L. Sp. 74. A soft rather pale green annual : stems slender,, 

 smooth, erect, or geniculate at base, 1-3)^ feet high, : sheaths smooth, 

 longer than the internodes : ligules very short: leaves 3-5, erect, slender 

 3-6 inches long: panicle narrow, more or less secund, 2-15 inches long 

 its scabrous triquetrous branches in twos and threes below, appressed, 

 the longest racemose, 1-6 inches long : spikelets on stout pedicels, linear, 

 5-8-flowered 5-6 lines long; the first glume 1 line long or less; the second 

 involute, lanceolate 2-3 lines long : flowering glumes scabrous, involute, 

 acuminate, 2-3 lines long, exclusive of the awns which are 4-10 lines long : 

 palets lanceolate, scabrous on the keels, bearing 2 short awns: stamens one. 

 Common in fields; naturalized from Europe. 



F. octoflora Walt. Fl. Car. 71. F. tenella Willd. An erect slender 

 tufted annual or biennial : stems sparingly branched 1-2 feet high : sheaths 

 shorter than the internodes, sometimes pubescent : ligules about % line 

 long: leaves erect, slender, 1-4 inches long, panicle simple, erect, 2-5 inches 

 long, narrow, or spreading at the base; its branches in pairs or solitary, 

 the longest 1-3 inches long : spikelets flat, oval 2-6 lines long, 7-13-flower- 

 ed: empty glumes involute so as to appear subulate, the first 1> lines 

 long, the second about 2 lines long: flowering glumes involute, acuminate, 

 scabrous, lj^-2 lines long, with an awn /^-3 lines long: palet a little shor- 

 ter than the glumes : stamens 2. On dry barren ground, Oregon to Cali- 

 fornia and the New England States. 



F. conflnis Vasey Bull. Torr. Bot. Club xi, 126. A tufted stout light 

 green perennial : stems erect, 2-4 feet high : sheaths loose, shorter than 

 the internodes: ligules truncate, )^-3 lines long: leaves of sterile shoots 

 half as long as the stem, with long slender points, those of the stem 2-3, 

 5-8 inches long, 2-3 lines wide, flat or involute, smooth or scabrous : pani- 

 cle narrow, 4-6 inches long, its branches in twos or threes, erect, the longer 

 1-2 inches long : spikelets oblong or ovate-lanceolate, 3-9 lines long, 2-3 

 flowered: empty glumes chartaceous, the first ovate, 1)^-3 lines long, 1- 

 nerved the second linear-lanceolate, 3-3)^ lines long, 3-nerved : flowering 

 glumes 2)^-3 lines long, lanceolate, scabrous, rather firm, acute or acumi- 

 nate, nearly awnle&s: palets elliptical, scabrous, ciliateonthe keelp. South- 

 eastern Oregon to Utah and Wyoming. 



F. denticnlata Beal Grasses N. Am. ii, 589. F. ambigua Vasey, 

 not Le Gall. A rather stout erect perennial : stems erect, 2>-4 feet high : 

 sheaths scabrous, longer than the internodes : ligules very short: leaves of 

 sterile shoots rather rigid. 7-10 inches long, those of the stem usually 4, 

 flat or becoming involute, with long attenuate points : panicle 7-10 inches 

 long, its branches flexuous, mostly in pairs, the longest 3-5 inches long: 

 spikelets purplish, 3-4-flowered: empty glumes narrow, the first about 1 

 line long, the second 2 lines long, 3-nerved : flowering glumes 3-4 lines 

 long, obscurely 5-nerved, scabrous, acuminate, bearing an awn 4-8 lines 

 long : palets 2-toothed. Oregon. 



F. Californica Vasey Cont. U. S. Nat. Herb, i, 277. Stems erect, 

 rather stout, 2-5 feet high, from a perennial root: leaves of sterile shoots 

 numerous, scabrous, involute, %-% 'as long aa the stem, about 2 lines wide, 

 of the stem usually 2: sheaths scabrous, shorter than the internodes hairy 

 at the throat : ligules a ciliate fringe : panicle open 5 pyramidal, 4-7 inches 

 long, the lower branches slender, mostly in distant pairs, the longest 2-5 

 inches long: spikelets 4-6-flowered 6-8 lines long, empty glumes ovate- 

 lanceolate; the firsts lines long, the second 3% lines long: flowering glumes 

 linear-lanceolate, 4-5 lines long, bearing a short awn, scabrous : palets scab- 

 rous, linear, 2-toothed. Edge of woods and open places, western Oregon. 



F. Howellii Hack. F. viridula Vasey. A densely tufted perennial : 

 sheaths shorter than the internodes : ligules less than 1 line long : leaves of 



