TYPHACEJ:. 379 



1. T. palustre Linn. : fruit of 3 united capsules, nearly linear, at- 

 tenuated at the base. 



HAS. Marshes. Salina,'N. Y. N. to Arc. Amer. July. If. 

 Scape a foot long, very slender. Leaves very numerous, fleshy, 

 nearly as long as the scape. Flowers small, greenish, in a ter- 

 minal lax spike or raceme. Arrow Grass.. 



2. T. maritimum Linn. : fruit ovate>oblong, of 6 united capsules 

 and T. datum Nutt. 



HAB. Salt marshes. Can. and N. S. W. to Mich. July. If- 

 Scape 18 inches long,, angled. Leaves all radical, narrow, 

 sheathing at base, shorter than the scape. Flowers very smalt 

 in a long terminal spike. 



2. SCHEUCHZERIA. Linn. 



'Perianth 6-parted. Stamens 6. Anthers linear. Stigmas 

 sessile, lateral. Ovaries 3 6. Capsules compressed, in- 

 flated, 2-valved, 1 2-seeded. Hexandria. Trigynia* 



8. palustris Linn. 



HAB. Sphagnous swamps. Ver"; N. Y. Penn. ^ rare. July*. 

 2_f. Stem 8 12 inches high. Leaves linear, roundish, sheath- 

 ing at base. Flowers greenish-yellow, in * a small terminal ra- 

 ceme. 



ORDER CXXXIV. TYPHACE^S. Ldnd. >', 



Flowers diclinous, arranged upon a naked spadix. Perianth 

 3-parted. Stamens 3 or 6 ; filaments long and slender ; an- 

 thers wedge-shaped, erect. Ovary single, superior, 1 -celled, 

 ovule solitary, pendulous; style short; stigmas I 2, linear, 

 simple. Fruit dry, indehiscent, 1-celled, ] -seeded. Embryo 

 in the centre of albumen straight, taper, with a cleft in one 

 side, in which lies the plumule ; radicle next the hilum. 



Herbs growing in marshes or ditches. Stems without nodi, 

 Leaves rigid, ensiform, with parallel veins. 



1. SPARGANIUM. Linn, 



Monoecious. Ament dense,* sperical. STERIE.E FL. Pm- 

 anth 3-leaved. FERTILE FL. Perianth 3-leaved. Drupe 

 dry, 1-seeded. Monoecia, Triandria. 



1. $. ramosum Smith: leaves triangular at base, their sides con- 

 cave ; common flower-stalk branched ; stigma -linear. & efectum 

 Linn. .*' ^.^ 



HAB. Stagnant- waters. Can. to Vir. 'July, Aug. If. Stem 

 2 feet high. Leaves few, ensiform. . Flowers white, in round 

 heads. Burr Reed, 



