10. GRAMINEiE. 72. Trisetiim. 129 
Pi. end. ph. 
Trisetiim Jlavescens. Yellow threelristle . 
Panicle equally spreading, diffused, becoming contracted; 
locustce 2 to 5-flowered, shining, yellowish ; lower leaves 
pubescent; ligula scarcely visible; outer spathellules 5-rib- 
bed; root rather creeping. 
Gramen avenaceum pratense elatius, panicula flavescente, locustis 
parvis, Raii Syn. 407, 5. 
Avena llavescens, Lin. S. P. 97. 
Trisetum pratense, Persoon Syn. 1,97. 
Fields and pastures; perennial; June and July. 
Culm upright, 2 feet high ; leaves flat, acute ; sheaths 
pubescent ; panicle rather drooping, manyflowered ; pedun- 
cles semiverticillate ; locustce spreading ; flowrets longer 1 
than the glume. 
0. liflorum. Locustce 2- flowered* 
XXXII. 73. DANTHONIA. R. Brown. Haver . 
Glumes 2 to 5-flowered ; spathelles alternate, nearly equal, 
longer than the flowrets; lower spat hellule 2-toothed, awned 
between the teeth ; awn plaited, twisted, tapewormshape ; 
upper blunt, truncated, not nicked ; lodicule ovate, not 
notched, bald; stigmata aspergilliform ; cariopsis free, ob- 
tuse, scarcely furrowed.— Panicle not branched, facing one 
way. 
Danthonia strigosa. Rough haver . 
Panicle oblong, slender, loose; locustce 2-flowered; lower 
spathellide streaked at the tip ; leaves smooth. 
Avena strigosa, Schreber Lips. 52. 
Danthonia strigosa, Pal. de Beauvois , 92. 
Cornfields; annual; July. 
Root fibrous ; culm 3 feet high, smooth ; leaves flat, glau- 
cous; ligula blunt; panicle upright, the tip drooping. 
XXXIII. 7'k AVENA. Pliny. Oat. 
Glume membranaceous ; spathelles alternate, nearly equal, 
longer than the flowrets ; glumelles awned ; lozver spathel- 
lule 2-lobed or 2-cut, toothed, awned on the back ; awn 
leathery, plaited, twisted ; upper spathellule 2-cut, toothed, 
sometimes torn ; lodicule ovate, not notched, bald ; stigmata. 
villose; cariopsis husked, furrowed. — Panicle branched, 
loose. 
VOL. II, 
K 
