> 
= | MONOECIA, TRIANDRIA, oe 
Aquatics: stems flexuous, leafy, many-flowered; upper 
~ €apituli masculine. ° ; 
Species. 1. S. ramosum. On the banks of the Delaware, 
.common.—Stem branching; stigma linear, soften bifid, 
longer than the style. fits 
y 2. * americanum. Lower leaves equal with or exceeding 
the stem, which is nearly simple, the floral ones concave 
at the base and erect; stigma always simple, ovate-ob- 
long, oblique, scarcely more than half the length of the 
style. S. simplex ? Pu. 2. p. 34. Has. In the vicinity of 
Philadelphia, common. “rmediate between S. simplex 
and natans, but entirely distinct.—Stem about 12 inches 
high, erect, simple, or a little divided at the base. Lower 
leaves carinate, floral ones concave at the base, expanding 
flat above. Feminine aments about 2 to 5, approximating, 
mostly sessile; male 6 to 9, sessile, partly contiguous by 
.3’s. Calicine scales 3, 4 and 6, scariose; spathulate, 
in the male much — ywer. Style about the length of 
the germ. 3. angustifolium. et 
“The 1st species is also indigenous to Europe, where 
there exists 2 others. ¢ 
638. ZEA. L. (Maize, Indian Corn.) 
28 ae Mase. Calix 92-flowered, 2-valved, awn- 
\ less. Corella glume awnless. Fem. Calix 
and corolla also 2-valved, Style 1, filiform, pen- 
dulous. Seeds immersed in an oblong recep- 
tacle. - e 
* "Pinte : 
Culm tall and eaves broad and spreading; 
masculine flowers paniculate, terminal; feminine spadices 
_ beneath, axillary, spathe many-leaved,‘convolute, fascicles 
of styles exserted, pendulous. 
_ 9 Spxeres. 1.2. Mays. Cultivated by the aborigines from 
~ Ftime immemorial, probably indigenous to tropical Ameri- 
oy .cal B:" precox. Stem very low; spathes arising also from 
4 the base of the culm; mostly in 8 rews; styloid um- 
® bilicus obsolétes{ “Early Mandan Corn.”) Successfully 
cultivated by rigines of the Missouri to its sources, 
“ripening in a climate where no other variety could exist. 
-» Of this interesting genus there is said by the Abbé 
de’ oe . . sae ‘ ie: » 
Molini to exist a second species in Chili. 
633, CAREX. L. (Sedge) 
Flowers imbricated in an ame 
Sr 
