GRAMIXEJE. 443 



filender ; spikelel.s 3 — 5-flowered, very slender, erect ; glumes shorter than the 

 flowers which are of a dark hue, with tufts of long, white, silky hairs. 

 About ponds. July. 



Tribe 7. FESTUCACE^. 



Inflorescence panicled. Spikelets many-flowered, ohlong. Flowers nessHe, closely arranged in 2 

 TOWS on the rackis. Palete o/shnitar texture with the glumes, the upper one with 2 keels. 



30. DANTHO'NIA. 

 Spikelets 2 — 7-flowered; glumes 2, subequal, longer than 

 the flowers, cuspidate ; paleae hairy at the base, lower one 

 tidentate at the apex, with a twisted awn between the teeth, 

 the upper one obtuse, entire. 



D. spica'ta. P.deB. Wild Oafs. Avena. i. 



6Yem slender, nearly erect, 12 — 18 inches high; lower leaves numeiows, 

 4 — (J inches long, flat, hairy above, cauline leaves much shorter, subulate, 

 erect, on very short sheaths ; panicle simple, spicate, short, erect ; spikelets 

 3 — 8 or 10, about 7-flowered ; glumes a little longer than the flowers; lowr.r 

 palea hairy, about half as long as its spirally twisted awn. Pastures and 

 open woods. June — Aug. 



31. BROMUS. 

 Spikelets 3— 20-flowered ; glumes 2, shorter than the flow- 

 ers ; lower palea cordate, bifid at the apex, usually awned a 

 little below the tip, upper palea conduplicate, ciliate on the 

 margin; scales ovate, smooth. 



1. B. secali'nus. Chess. 



Stem smooth, erect, 3 feet high ; leaves flat, rough at the edge and above; 

 */teai/;5 nerved, smooth ; 5ii/«//e laciniate; pa7«'t/c spreading, the branches 

 mostly simple, each beariu'f 1 — 2 spikelets; spikelets ovate, compressed, 

 about 10-flowered, large, 2-ranked, oval, appearing not unlike short heads of 

 rye. A handsome grass in fields, often among wheat. June. Ann. 



2. B. MOLLIS. Soft Brown Grass. 



Stem erect, mostly pubescent, 1 — 2 feet high ; leaves and sheaths downy- 

 pubescent ; panicle erect, close, compound, 3 — 4 inches long; spikelets oblong- 

 ovate, slightly compressed, tomentose, 5 — 10-flowered ; flowers elliptical ; 

 loicer palea oblong-lanceolate, 7-nerved, v/ith a straight awn nearly its length. 

 A coarse grass, in fields and roadsides. June. July. 



3. B. cilia'tus. 



Stem slender, 3 — 4 feet high, bearded at the nodes; leaves hairy above, 

 smooth beneath, ;|^ inch wide ; sheaths downy ; panicle drooping; spikelets 

 oblong-lanceolate, terete, 8 — 10-flowered, with acute, ciliate glumes (not mu- 

 cronale; ; palea. hairy, villosely ciliate on the margin ; aw,-n short. Woods. Jn. 



4. B. PURGANS. 



Stem round, smooth, 3 — 4 feet high ; leaves broad-linear, smooth and glau- 

 cous ; sheaths pilose with reversed hairs ; panicle nodding, with rough and 

 fle.xuous branches ; spikelets lanceolate, terete, 6 — 8-flowered ; jloioers hairy, 

 with a straight awn. Meadows. July. Aug. 



5. B. PUBES'CENS. 



67cm striate, smooth above, hairy below, with black nodes, 2 — 4 feet high ; 

 leaves linear-lanceolate, hairy above, rough-edged; upper sheaths smooth, 

 lower ones hairy ; panicle loose, nodding, branches in clusters of 2 — 5, flexu- 

 ous ; spikelets lanceolate, 8 — 12-flowered ; Jloioers pubescent, with short 

 straight awns. Woods. Common. Jn. 



