534 
cluster, 5 to 10 cm. long: spikelets 4 to 6 mm. long, 3 to 6-flowered; glumes convex, 
sub-acute, hispidulous on the back, (Cynosurus Indicus L.)\—Yards and cultivated 
land. (Introduced from India?) 
2. EB. Aigyptiaca (L,) Pers, (Guose-Grass,) Culms 1 to 4 dm. high, usually from 
decumbent running stems: leaves ciliate near the base: spikes 3 to 6, 2 to 5 em, 
long: spikelets 3 mm. long, 2 to 3-flowered, smooth; first empty glume short awned; 
second glume and floral glumes broadly carinate, acuminate. (Cynosurus degyptius 
L,)—Y¥ards and cultivated land, (Introduced from Africa?) 
48, LEPTOCHLOA Beauv. 
Spikelets 3 to 6-flowered, the upper floret imperfect, loosely spicate 
on one side of a slender rachis: spikes racemose, erect or slightly 
spreading in a plume-like panicle: empty glumes carinate membra- 
naceous, equal or the second slightly larger, rarely exceeding the florets, 
awnless; floral glume 3-nerved, oval, sometimes 1-awned, larger than 
the palet: seeds oblong, slightly roughened, closely inclosed,—Annuals,. 
* Empty glumes narrowly ovate or awl-shaped, about equaling the florets. 
1. L. mucronata (Michx.) Kth, (FEATHER GRass.) Culms 2 to 6 dm. high, 
usually branching near the base, rather weak: leaves flat; sheaths usually pilose: 
spikes 3 to 8 cm, long, mostly alternate, spreading in slender racemes one-half as 
iong as the culm: spikelets about 2 mm. long, 2 to 4-flowered; empty glumes very 
acute, but not “mucronate ;” floral glume obtuse or slightly emarginate, pubescent 
on the back, (leusine mucronata Michx,)—Vields and sandy river banks, Texas to 
Illinois and Virginia, 
** Empty glumes broadly oval, shorter than the florets, 
+ Raceme dense, 25 to 75 spikes. 
2. L. Nealleyi Vasey. Culms rather robust, about 1 m. high: leaves smooth 
throughout: spikes 2 to 5 cm. long, decreasing upwards, subverticillate in a raceme 
2 to 3 dm. long, usually included at the base: spikelets 2 to 3 mm. long, 3 to 
5-flowered; floral glume subobtuse or emarginate and mucronulate, pubescent on the 
margins and keel.—Low land, central Texas. 
~~~ Raceme rather loose, 6 to 15 spikes. 
3. L. virgata (L.) Beauv. Culms slender, 4 to 8 dm, high: leaves often involute; 
sheaths usually smooth: spikes 5 to 10 em. long, nearly erect in a plumose raceme 1 
to 2.dm., long: spikelets 3 to 4 mm. long, 3 to 6-flowered; floral glume ciliate, emar- 
ginate, more or less distinctly awned, (Cynosurus virgatus L. L. Domingensis in 
part.) —Southern Texas to Florida, near the coast. 
49. BULBILIS Raf. 
Spikelets dicecious (rarely moneecious), very unlike; staminate spike- 
let 2 to 3-flowered, sessile in two rows in short one-sided spikes; empty 
glumes l-nerved, subacute, the second larger but shorter than the 
florets; floral glume 3-nerved, slightly exceeding the palet: pistillate 
spikelets 1-flowered in short spikes; empty glumes nearly equal, united 
at the base, 3-toothed, indurated, larger than the floret; floral glume 
narrow, membranaceous, 2-cleft or nearly entire, inclosing the palet 
and large grain.—Perennial, creeping or stoloniferous. (Buchloé 
Engelm.) 
