126 66. Dactylis. 10. GRAMINE^. Vlend.ph. 



XXVI. 67. KOELERIA. Persoon. Silver-grass. 

 Glume 2 or S-flowered; spathelles alternate, nearly as 



long as the flowrets ; glumelle bristled ; loiver spatheUule 

 shining, pointed beneath the tip, edge scariosej bristle very" 

 short; upper 2-cut; stigmata rather plumose; feathers 

 aspergilliform ; cariopsis free. — Rachis panicled; panicle not 

 branched ; peduncles crowded ; locustce compressed, pu- 

 bescent, nearly awnless. 



Koeleria cristata. Crested silver-grass. 



Panicle spikeshaped, base interrupted, smoothish ; locustce 

 2 or 3-flowered, very slightly bristled, very acute; leaves 

 flat, the lowest ciliately pubescent ; adm smooth below the 

 panicle. 



Gramen alopeciiroides q. Gramen pumilatn birsutum spica purpuro- 

 arscentea molli, Raii Sij7i, 396, 3. 

 ' Aira crislata, Lin. S. P. 94. 

 Poa cristata, With. Bot. Arr. 145. 

 Festuca cristata, Vill. Dauph. 2, 93. 

 Koeleria cristata, Persoon Si/n, 1,9T. 



Barren pastures and walls; perennial; July and August. 



Root fibrous, in tufts ; culm upright, leaty at bottom ; 

 leaves green, shorter than the culm ; sheath rough ; ligula 

 very short; panicle oblong; peduncles pubescent, short, in 

 pairs ; locustce yellowish. 



XXVII. 68. CYNOSURUS. Linnseus. Dogs-tail. 

 Glumes 4 or 5-flowered ; spathelles alternate, shorter than 



the flowrets ; glumelle awnless ; lower spatheUule very acute, 

 upper 2-cut, toothed; lodicule ovate, not nicked, hairy; 

 stigmata villose; carinpds husked, furrowed. — Rachis spiked; 

 spike branched ; locustce 2 in each involucrum ; ijivolucrum 

 1 -leafed, lobed; lohes pinnatified. 



Cynosurus crislatus. Crested dogs-tail. 



Panicle linear; leaves linear. 



(iramen vernum q. Gramen cristatum, Raii Syn. 398,2, 

 Gramen cristatum Anglicum, Park. 1159. 

 <iramen cristatum Bauliini, Ger.em. 29. 

 Cynosurus cristalus, Lin. S. P. 105. 

 Phleum cristatum, Scop. Cam. 81. 



Dry pastures ; perennial ; June to August. 



Roots in tufts ; C7d7n erect, 1 foot high, very smooth ; leaves 

 jiarrow, smooth; sheaths round, quite smooth; ligula short; 

 spike facing one way, 1 or 2 in. long. 



fi. tetragonus. Spike 4-rowed, 4-sided. 



y. viviparous. Spike viviparous. 



