128 GRAMINEAE. 
1. Zizaniopsis miliacea (Michx.) Doell 
& Aschers. Zizaniopsis. (Fig. 285.) 
Zizania miliacea Michx. Fl. Bor. Am. 1:74. 1803. 
Zizaniopsis miliacea Doell & Aschers.; Baill. Hist. P1. 
12: 293. 1893. 
Culms 4°-15° tall from a long and creeping root- 
stock, robust, glabrous. Sheaths loose, glabrous; 
ligule 4/’-7’ long, thin-membranous; leaves 1° 
long or more, %4/-1’ wide, smooth, glabrous; panicle 
dense, 1°-14° long, narrow; branches erect ; stam- 
inate spikelets 3/’-4’’ long, the outer scale 5-nerved, 
the inner 3-nerved, both acute; pistillate spikelets 
about 3/’ long, the outer scale about equalling the 
inner, bearing an awn 1/’/-3’’ long, scabrous, 5- 
nerved; inner scale 3-nerved, acute. 
Swamps, Georgia to Ohio (according to Riddell), 
south to Florida and Texas. June-July. 
16. ZIZANIA L,. Sp. Pl. 991. (1753.-) 
A tall aquatic monoecious grass with long flat leaves and an ample panicle. Spikelets 
1-flowered, the pistillate borne on the upper branches of the panicle, the staminate on the 
lower. Scales 2, membranous, the outer somewhat longer, acute in the staminate, long- 
awned in the pistillate spikelets. Stamens 6. Styles nearly distinct. Grain linear, 5//-S’’ 
long. [From an ancient Greek name for Darnel. | 
A monotypic genus of North America and Asia. 
1. Zizania aquatica Il. Wild Rice. 
Indian Rice. Water Oats. Reed. 
(Fig. 286.) 
Zizania aquatica Y,. Sp. Pl. 991. 1753. 
Culms erect from an annual root, 3°-10° tall, 
smooth and glabrous. Sheaths loose, glabrous ; 
ligule about 4’ long, thin-membranous; leaves 
1° or more long, 4 ’-1!4’ wide, more or less 
roughened, especially above, glabrous ; panicle 
1°-2° long, the upper branches erect, the lower 
widely spreading; staminate spikelets 3//-6’’ 
long, scales acute or awn-pointed, outer 5- 
nerved, the inner 3-nerved ; scales of the linear 
pistillate spikelets 4’/-12’’ long, the outer one 
5-nerved, with an awn 1/2’ long, the inner 
narrower, 3-nerved, awn-pointed. 
In swamps, New Brunswick to Manitoba, south 
to Florida, Louisiana and Texas. June—Oct. 
17, HOMALOCENCHRUS Mieg.; Hall. Hist. Stirp. Helv. 2: 201. _ 1768. 
[LEERSIA Sw. Nov. Gen. &. Sp. 21. 1788. Not Hedw. 1782.] 
Marsh grasses with flat narrow generally rough leaves, and paniculate inflorescence. 
Spikelets 1-flowered, perfect, strongly flattened laterally, and usually more or less imbri- 
cated. Scales 2, chartaceous, the outer one broad and strongly conduplicate, the inner 
much narrower. Stamens 1-6. Styles short, distinct. Stigmas plumose. Grain ovoid, 
free. [Greek, in reference to the supposed resemblance of these grasses to Millet. ] 
About 5 species, natives of temperate and tropical countries. Besides the following, 2 others 
occur in the southern United States. 
Spikelets oblong, their width less than one-half their length*somewhat imbricated. 
Spikelets 14''—1's"" long; panicle-branches usually rigid. 1. H. Virginicus. 
_ Spikelets 2'’-2''’ long; panicle-branches generally lax. 2. H. oryzotdes. 
Spikelets oval, their width more than one-half their length, much imbricated. 3. AH. lenticularis. 
