40 
Triandria. 
Al. Geniculatus, Floating Fox-tail Grass with an as- 
cending knee’d stem, spike slightly lobed and cylindri- 
cal, glumes hairy, retuse ; perennial ; flowers in July, 
and is common in pools and watery places. 
Agrostis. Gen. char. — Cal. two-valved, one-flow- 
ered, valves acute ; cor. two-valved, unequal, larger than 
the calyx ; stigmas plumose. 
Ag. Vulgaris , Fine Bent-grass ; with a spreading pa- 
nicle, the little branches capillary, divaricated, calyces 
equal, the interior petal one-half shorter ; perennial ; 
flowers in July, and is common in meadows and pas, 
tures. 
Ag. Stolonifera, Creeping Bent-grass : panicle com- 
pact, with a branchy creeping stem, florets crowded, 
calyces equal, downy perennial; flowers in July and 
August, and is common in moist meadows. This is the 
celebrated Jiorin-grass which has been most injudicious- 
ly and erroneously recommended for all soils and situa- 
tions. 
Ag. Alba, Marsh, or Wood Bent-grass; with a loose 
panicle and creeping stem; perennial; flowers in July, 
and grows in ditches and marshy places. This species 
has been also cultivated as florin grass. 
Poa. Gen. char. — Cal. two-valved, many flowered, 
spikelets rounded at the base ; cor. two-valved, ovate, 
valves somewhat acute. 
Poa Trivialis, Roughish Meadow-grass ; panicle dif- 
fuse, spikelets three-flowered, glumes lance- shaped, five- 
nerved, straw upright and rough ; perennial ; flowers 
through the summer, and very common in meadows and 
pastures. 
