POACEAE 119 
3. L. domingensis (Jacq.) Trin. Resembles L. virgata: d -o 
racemes shorter, usually more numerous, more closely flowered. [D. domingensis 
Chapm.]—Sandy soil, S Fla.— — (W. I., Mex., C. A., S. A.) 
4. L. filiformis (Lam.) Beauv. Stem 40-80 em. tall, sometimes 
racemes 20—40, grag 4 I ading, — slender, lax, 5-10 cm. long: 
spikelets about 3 mm. —4-flowered: lemmas awnles [L. cronata 
Kunth. L. attenuata N S * meade, End, bottoms and d hills, various 
provinces, Fla. to Tex., Calif., Ill, and Mass.— —(W. I., Mez., C. A., 8. A.) 
L. fascicularis n .) A. Gray. Plant smooth: stem erect, spreading or 
rd ar 20-100 em. long: leaf-blades 3-5 mm. wide, usually involute: panieles 
lon the 
as much as 25 em. base dr um the upper sheath, t emes 
8—12 em. oe at first ascending, finally spreading: spikelets 6—12-flowered: 
lemmas da . long, in es id Scent poit the awn sometimes as long 
as the lem "TD. fas bu aris D. minata Nash D. procumbens 
ash ]—Brackish soil Eine the Puig ead oif places in the interior, various 
provinces, Fla. to Tex., Calif., S. D., and N. H. 
6. L. floribunda Doell Stem 60-100 em. tall: leaf-blades lax, Cee 5-10 
mm. wide, scaberulous: panicles e. rather compact, 10-20 v m. long, the 
numerous racemes ascending, pe ong: De re a S 4—5 mm. lon ng, 5—7-flow- 
ered: lemmas 3 mm. long. [D. H alei N ash ]— en Coastal Plain and adj. 
provinces, S Miss. to Tex., and S Ind. ice eee introduted. —(£. A.) 
6a. Leptochloa ss (Pres!) Hitehe. & Chase. Annual, densely tufted: 
stems ascending to subereet, 50— em. tall: leaf-blades narrow, subinvolute: 
e Gene Ter peus , 15- 30 em. long, the numerous spikes stiffly ascending: 
spikele dy em. long, 6-9-flowered, = lemmas obtuse, minutely mucronate.— 
lem den La. to Cal. (Mez., C. A 8. 4 
80. MONANTHOCHLOE Engelm. A creeping wiry dioecious perennial, 
with clustered short subulate leaves, the spikelets at the ends of the short 
branches only a little exceeding the leaves. Spikelets 3- to 5-flowered, the 
rachilla disarticulating tardily in pistillate 
spikelets: glumes wanting: iS cin 
the back, convolute, narrow 
iu ape those of the rid s de 
i alea narrow, in the 
elow.—Two species, both American. 
1. M. littoralis Engelm. Branches mod 
merda ere S Fla., S Tex., and S alit qm. I., Mex., L8 A.) 
81. ARUNDO L. Tall perennial reeds with broad linear blades and 
large plume-like terminal panicles. Spikelets several-flowered,. the rachilla 
glabrous, articulate above the glumes and between the florets; glumes some- 
what unequal, membranaceous, 3-nerved, narrow, tapering into a slender point, 
