348 MON(ECIA TKIATTDKIA. [CL. XXI, 



TKIANDRIA, 

 3. TY'PHA. REED-MACE. 



Barren flowers numerous, arranged in a dense, cylindrical, 

 hairy, terminal catkin, the common stalk of which is hairy or 

 scaly. Calyx none. Corolla none. Anthers about three, ob- 

 long, furrowed, drooping, placed on a common filament. 



Fertile flowers numerous, in the lower part of the same catkin. 

 Calyx none. Corolla none. Germen superior, oblong, stalked. 

 Style hair-like ; stigma simple. Seed solitary, egg-shaped, on 

 a bristly stalk. Named from tiphos, a marsh. 422. 



1. T. latifolia. Great Cafs-tail or Reed-mace. Leaves linear, 

 somewhat convex beneath ; catkin continuous, its common stalk 

 hairy. -Stems about six feet high, erect, round, leafy at the bot- 

 tom : catkin about a foot long, brown. Perennial : flowers in July : 

 grows in the borders of ponds, lakes, and rivers : frequent. Eng, 

 Bot. vol. xxi. pi. 1455. Eng. Fl. vol. iv. p. 71. 1280. 



2. T. angustifolia. Lesser Cafs-tail or Reed-mace. Leaves linear, 

 convex beneath, channelled above ; barren and fertile catkins sepa- 

 rated from each other, the common stalk scaly Stems about four 



feet high. Perennial : flowers in June and July : grows in pools 

 and ditches : rare. Eng. Bot. vol. xxi. pi. 1456. Eng. Fl. vol. iv. 

 p, 72. 1281. 



4. SPARGA'NIUM. BUR-REED, 



Flowers arranged in several dense heads. 



Barren flowers numerous, in one or more superior heads. 

 Calyx of three or more oblong, equal, deciduous leaves. Corolla 

 none. Filaments three, hair-like, erect, longer than the calyx ; 

 anthers roundish, two-celled. 



Fertile flowers numerous, in dense heads under the former, 

 Calyx of three or more oblong, equal, deciduous leaves. Co- 

 rolla none. Germen superior, egg-shaped. Stigma awl-shaped, 

 or egg-shaped, oblique, downy on one side, permanent. Drupe 

 inversely egg-shaped, beaked, dry, one-celled. Nut solitary., 

 egg-shaped. Name, from sparganon, a little band. 423. 



1. S. ramosum. Branched Bur-reed. Leaves triangular at the 

 base, their sides concave ; common flower-stalks branched ; stigma 

 awl-shaped. Stem erect, from two to three feet high. Peren- 

 nial : flowers in July and August : grows in ditches and by the sides 

 of lakes and pools : common. Eng. Bot. vol. xi. pi. 744. Eng. Fl. 

 voL iv. p. 74. 1282. 



2. S. simplex. Unbranched Bur -reed. Leaves triangular at the 

 base, with the sides nearly flat ; common flower-stalk unbranched ; 



stigma linear. Stem erect, about two feet high. Perennial: 



flowers in July and August : grows in ditches, and by the sides of 

 lakes and pools : frequent. Eng. Bot. vol. xi. pi. 745. Eng.Fl.vol* 

 iv. p. 75. 1283. 



3. S. ndtans. Floating Bitr-reed. Leaves floating, flat ; common 



flower-stalk unbranched ; stigma egg-shaped, very short. Stem 



a few inches above the water. Perennial : flowers in July : grows 

 in pools, lakes, and rivers : common in Scotland. Eng. Bot. vol. 

 iv. pi . 273. Eng. Fl. vol. iv. p. 75. 128xL 



