Sparganium.] TYPHACE^. 263 



from each other. Br. Fl 1. p. 386. E. Fl. v. iv. p. 72. E. 

 Bot. t. 1456. 



p. minor. T. minor , Willd. much smaller in all its parts. 



Lakes and ditches. Ditch near the turnpike-gate between Belfast 

 and Carrickfergus ; Mr. Templeton. In Lough Hanay, between Lis- 

 burn and Saintfield, abundant ; Mr. Campbell. Var. 0. Found by 

 the late Mr. Underwood and myself in the lake at Sandymount, above 

 twenty years ago. FL July. 1(1. As tall as the last, but with nar- 

 rower leaves and catkins. In var. . all the parts are much smaller 

 than in the other variety, but agreeing with it, in having the separated 

 cylindrical catkins. 



2. SPARGANIUM. Linn. Bur-reed. 



Flowers in sphaerical, dense heads. Barren fl. Perianth single, 

 of three leaves. Fertile fl. Perianth single, of three leaves. 

 Drupe dry, with one seed. Name, ffTrap^avov, a little band, 

 from its narrow and long leaves. 



Moncecia. Triandria. 



1. S. ramosum, Huds. Branched Bur-reed. Leaves trian- 

 gular at the base, their sides concave ; common flowerstalk 

 branched ; stigma linear. Br. Fl. 1. p. 386. E. Fl. v. iv. p. 

 74. E. Bot. t. 744. 



Ditches, lakes, and stagnant waters. Fl. July. If. Stem about 

 three feet high, with a few, long, sword-shaped leaves or bracteas, 

 having broad membranous sheathing bases on the upper or branching 

 part. Root-leaves very long, linear-ensiform, triangular at the base, 

 their sides concave. Sterile flowers in sphasrical heads, distantly 

 placed ; fertile ones below. 



2. S. simplex, Huds. Unbranched upright Bur-reed. Leaves 

 triangular at the base, their sides flat; common flowerstalk 

 simple; stigma linear. Br. FL 1. p. 386. E. Fl. v. i. p. 75. 

 E. Bot. t. 745. 



Ditches and stagnant waters, especially in a gravelly soil. Cur- 

 ragha bog near Ashbourne, in the County of Dublin, near Belfast, and 

 many other places. FL July. 1. Much smaller than the last. Stem 

 rarely if at all branched, though the lower heads of flowers are stalked. 

 The sides of the leaves are plane, not concave or grooved. The 

 flowers pale yellow. 



3. S. natans, Linn. Floating Bur-reed. Leaves floating, 

 plane ; common flowerstalk simple ; stigma ovate, very short ; 

 head of sterile flowers mostly solitary. Br. Fl. 1. p. 887. E. 

 FL v. iv. p. 75. E. Bot. t. 273. 



Lakes, ditches, and stagnant waters. Plentiful in Cunnamara, and 

 in a marsh on the Hill of Howth, &c. FL July. % . Leaves very 

 long, linear, pellucid. 



