126 66. Dactylis. 10. GRAMINEiE. Plend.pL 
XXVI. 67. KOELERIA. Persoon. Silver-grass . 
Glume 2 or S-flowered; spathelles alternate, nearly as 
long as the flowrets ; glumelle bristled ; lower spathellule 
shining, pointed beneath the tip, edge scariose; bristle very 
short; upper 2-cut; stigmata rather plumose; feathers 
aspergill iform ; cariopsis free. — Rackis panicled; panicle not 
branched ; peduncles crowded ; locustce compressed, pu- 
bescent, nearly awnless. 
Koeleria cristata. Crested silver-grass* 
Panicle spikeshaped, base interrupted, smoothish ; locusts 
2 or 3-flowered, very slightly bristled, very acute; leaves 
flat, the lowest ciliately pubescent ; culm smooth below the 
panicle. 
Gramen alopectiroides q. Gramen pumilum hirsutum spica purpuro- 
argentea molli, Rail Syn. 396, 3. 
Aira cristata, Lin. S. P. 94. 
Poa cristata, With. Bot. Arr. 145, 
Festuca cristata, Fill. Daupk. 2,93. 
Koeleria cristata, Persoon Syn. 1,97. 
Barren pastures and walls ; perennial ; July and August. 
Root fibrous, in tijfts ; culm upright, leafy 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. Linnaeus. Dogs-taiL 
Glumes 4 or 5-ftowered ; spathelles alternate, shorter than 
the flowrets; glumelle awnless; lower spathellule very acute, 
upper 2-cut, toothed; lodicule ovate, not nicked, hairy; 
stigmata villose; cariopsis husked, furrowed. — Rachis spiked; 
spike branched ; locustce 2 in each involucrum ; involucrum 
1 -leafed, lobed; lobes pinnatified. 
Cynosurus cristatus. Crested dogs-tail . 
Panicle linear ; leaves linear. 
Gramen vermim q. Gramen cristatum, Raii Syn. 398,2. 
Gramen cristatum Anglicum, Park. 1159. 
Gramen crlstaium Bauhini, Ger.em. 29. 
Cynosurus cristatus, Lin. S. P. 105. 
Piileum cristatum, Scop. Cam. 81. 
Dry pastures; perennial; June to August. 
Roots in tufts ; culm erect, 1 foot high, very smooth ; leaves 
narrow, smooth; sheaths round, quite smooth; ligula short; 
spike facing one way, 1 or 2 in. long. 
P. tetragomis. Spike 4-rowed, 4-sided. 
y. viviparous . Spike viviparous. 
