MOXOKCIA. TRIANDRIA. 203 



Aquatics: stems flexuous, leafy, many-flowered; upper 

 Capituli masculine. 



Species. 1. S. ramosum. On the banks of the Delaware, 

 common.— Stem brandling; stigma linear, often bifid, 

 longer than the style. 



2. * a7nerica7inm. Lower leaves equal with or exceeding 

 the stem, which is nearly simple, tlie floral ones concave 

 at the base and erect; stigma always simple, ovate -ob- 

 long, oblique, sciircely more than half the length of the 

 style. 5. simplex? Ph. 2. p. 34. Had. In the vicinity of 

 Philadelphia, common. Intermediate between .S'. simplex 

 and nutans, 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 contigious by 

 3's. Calicine scales 3, 4, 5, and 6, scariose; spathulate, 

 in the male much narrower. Style about the length of 

 the germ. 3. anjustifolmm. -|-. 



The 1st species is also indigenous to Europe, where 

 there exists 2 others. 



632. ZEA. L. (Maize, Indian Corn.) 



Masc. Calix 2-flowcrod, 2-vaIved, awn- 

 less. Corella glume awnless. Fbm. Calix 

 and corolla also 2-valved. Style 1, filiform, pen- 

 dulous. Seeds immersed in an oblong recep- 

 tacle. 



Culm very tall and robust, leaves broad and spreading; 

 masculine flowers paniculate, terminal; feminine spadices 

 beneath, axillary, spathe many-leaved, 'convolute, fascicles 

 of styles exserted, pendulous. 



Species. 1. Z. Mays. Cultivated by the aborigines from 

 tinie immemorial, probably indigenous to tropical Ameri- 

 ca? /3. * preecox. Stem very low; snathes arising also from 

 the base of the culm; seeds mostly in 8 rows; styloid um- 

 bilicus obsolete. ( "Early Mandau Corf).") Successfully 

 cultivated by the aborigines of ;he Missouri to its sources, 

 ripening in a climate where no other variety could exist. 



Of this interesting genus there is said by the Abbe 

 Molini to exist a second species in Chili. 



633. CAREX. L. (Sedge.) 



Flowers imbricated in an ament. Masc. Ca-^ 



