122 POACEAE 
spikelets. Spikelets few-flowered, the whe ce the rachilla slender, dis- 
id above the glumes and. betw the florets; glumes subequal, 
l-nerved, acute; lemmas narrow, 3-nerved, 2. “tobe , the nerves parallel, ; 
the donum pair near the margin, the midnerve CUR as an awn as long as 
the lobes or longer: palea oet than the lemma, the keels densely long-ciliate 
on the upper half.— Three species, natives of the United States.—SAND-GRASSE 
Lobes e: ond subulate-pointed: awn longer than the body: 
peren 1. T. americana. 
Lobes of cena not subulate-pointed : o . 
Awn about 3 mm. long: lobes of jemnis narro OW. 2. T. intermedia. 
Awn scarcely exceeding the rounded, broad, lobes of lemma. 3. T. purpurea. 
T. ricana Bea Stem Spr reading, 30—70 em. tall: panicle 2-5 em. 
mu the | Peaches eerie usually only 1-3 spikelets about 1 em. long: glumes 
about 5 mm. long, narrow, acuminate: lemmas cleft to the middle or below, 
| ensely 
pubescent below W, scabrous above.— andy 
soil, pinelands and sandy ridges, Coastal 
Plain, Fla. to Miss. and N. C. 
T. intermedia Nash. Stem decumbent- 
ipud soil, Fla. to Tex. and 
T. rpurea . (Walt.) Chapm. Stem 
e or ascending, 30—80 em. long: 
paniele 3-7 em. long, the few B i pepe: 
ikele 
o 
lemmas about 3 mm. long, e at “the eui the obtuse lobes less than 1 mm 
long. [T7. sparsiflora Cha NE rd GRASS.)— Sandy soil, Coastal Plain 
and New En * Coast, Fla. and N. H., and Great Lake Lowland, 
Minn. to Mie 
85. ERAGROSTIS Beauv. Annuals or perennials of various habit, the 
inflorescence an open or contracted panicle. elets few-many-flowered, 
the florets inn closely imbricate, the rachilla disartieulating above the 
glumes and between the florets, or continuous, the lemmas deciduous, the paleas 
persistent; pius somewhat unequal, Pd than the first lemma, acute or 
acuminate, 1-nerved, or the second rarely 3-nerved: lemmas acute or acuminate, 
keeled or rounded on the back, 3-nerved, the nerves usually prominent; kee 
of the palea sometimes ciliate.—O undred species, in temperate and tropical 
regions generally.—LOVE-GRASSES. SKUNK-GRASSES. MEADOW-GRASSES 
Plant perennial. 
Spikelets 2.5-4 mm 
Panicle narrow : aen sharp-pointed. I. SECUNDIFLORAE. 
Panicle wide, open: florets acute or acuminate but not 
sharp-pointed. II. REFRACTAE. 
e T 5 mm. wide. III. BAHIENSES. 
Plant annu 
tem Pn 'stoloniferous and creeping. IV. HYPNOIDES. 
Stem erect, or decumbent at ed but 29 Soe Tous: 
Palea conspicuously ciliate: panicle narrow. V. CILIARES. 
Palea not conspicuously ciliate. 
Spikelets nearly sessile, mostly more than 20-flow- 
ered, somewhat clustered along the main axis or 
along the short spreading branches. VI. SIMPLICES. 
