210 MOXOECIA. HESANDRIA. 



Flowers glomerated and axillary, or paniculate and ter- 

 minal; stem often siriate. (In A. spinosus there are 2 spines 

 at t!ie base ot" each leaf.) 



Spscies. 1. A. nlbus. 2- grcecizciis. 3. lividus. 4. 

 BUium^ 5. vhidis. 6. * pumiliis. Glomeruli axillary, flow- 

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

 obtuse, smootl) and carnose, often reluse. Hab. On ai\ 

 island near Eg-g- Harbour. — Mr. Rafines-que, iSew York. 

 Med. Repos. 2. p. o60. No. 22. v. v. Probably upon the 

 beach of the same island. Collected many \ ears back by 

 my fiiend Z. CoUins, Esq. Scarcely 1 foot high, and 

 somewhat decuinbent; flowers green; growing with iSct- 

 aoluy cjc. T.hybridus. 8. pimiculatus. ^. saiigidneits. 10. 

 retrofexKS. Xl.I "pochondriacus. (Prince's-feather ) 12- spi- 

 710SUS. — This species is also indigenous to India. 



A genus of near 40 species, almost exclusively confined 

 to India and Norih America; there are also 3 species in 

 Europe. 



Order VI HEXANDRIA, 



'47. ZIZANIA. L, (American Rice.) 



Masc. Calix none. Corolla S-valved, a^^n- 

 less. Fjsm. Calix none. Corolla 2-valved, cu- 

 cullate, awned. Style 2-parted. Seed 1, inves- 

 ted by the corolla. 



Aquatic grasses, culm tall, the summit pyramidally pa- 

 niculated, lower psrt of the panicle effuse, masculine, 

 upper part erect, spiked and feminine. The flowers of 

 both sexes sometimes intermixed. 



Spe-cies. 1. Z. cquatica. Lambert in Lin. Trans. 7. p. 

 264, accompanied by a large and \^Ty accurate plate. 2. 

 vnliacea. -f-. S-Jiuitans. 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 Ma- 

 labar. 



