210 MONOECIA. HBXANDKIA. 



Flowers glomerated and axillary, or paniculate and ii 

 minal; stem often striate. (In ^. spinosus there are 2 spin<^ 

 at the base of each leaf.) .; 



Species. 1. A. nlbtis. 2. grxcizans. 3. Hviibis. 4. 

 BHtnm. 5. viridis. 6. * pinmhi^. Glomeruli axillary, flow- 

 ers pentandrous, calix 5-leaved, concave; leaves ovate 

 obtuse, smooth and carnose, often retuse. Hab. On an 

 island near Eg-g Harbour. — Mr. Rafinesque, Mew York 

 Med. Repos. 2Vp. 360. No. 22. v. v. Probably upon the 

 hUach of the same island. (;ollected many years back by 

 / my friend Z (JoUins, Esq. Scarcely 1 foot hi.^h, and. 

 somewhat decumbent; flowers green; growing- with Sal- 

 sol^ &c. T.h^bridiis. 8. p(miculatus. 9. sangztineni>\ iO... 

 't'Ttrof.exus. W.hijpochondriacus. (Prince's-teathtT.) \2. spi- 

 nosus. — This species is also indigenous to India. 



A genus of near 40 species, almost exclusively confinei. 

 to India and North America; there are also 3 species i'. 

 Europe. 



Order VI.— HEXANDRIA, 



747, ZIZANIA. L. (American Rice.) 



Masc. Calix none. Corolla S-valved, awn- 

 less. Fem. Cafe none, Co7'o//a 2-valved^ cu= 

 cuUate, awned. Styh 2-parted^ Seed 1, inves 

 ted by the coroUa. 



Aquatic grasses, culm tall, the summit pyramidally pa- 

 Tiiculated, lower part of the panicle effuse, masculine^ 

 upper part erect, spiked and teminine^ The flowers of 

 both sexes sometimes intermixed. 



Species. 1. Z. aqnatica. Lambert in Lin. Trans. 7. p.- 

 264, accompanied by a large and very accurate plate. 2, 

 miliacea. -f-- oj^uitans. Very small, and easily confound- 

 ed with other aquatic grasses, v. v. Around Savannah in 

 Georgia, pointed out to me by Dr. Baldwyn. 



Another species of this genus is said to grow in ^i^ 

 iabar. 



