504 



TYHHACE/E 



uous with that of staminate flowers. — Ponds ; common. Often 

 caHed Bulrush, a name properly belonging to the large rush-like 

 Scirpus liuustris. — Fl. July, August. Perennial. 



2. T. august! foil a (Lesser Reed- 

 Mace, or Cat's-tail). — Smaller and 

 more slender, with narrow leaves 

 grooved below, not glaucous, longer 

 than the flowering stems, and the 

 long, slender spike of pistillate 

 flowers separate from the staminate 

 one. — Ponds ; less frequent. Both 

 these species are now largely sold 

 as ornaments. — Fl. July, August. 

 Perennial. 



2. Sp.\Rf;.4NiuM (Bur-reed). — • 

 Graceful aquatics with sword-shaped 

 leaves and flowers in distinct, dense, 

 globular heads ; perianth 3 — 6- 

 leaved, membranous ; stauie}is 2 — 3, 

 distinct, (Name in Greek denoting 

 a little band or strap, from the 

 ribbon-like leaves.) 



1. 5- ercctuin (Branched Bur- 

 recd). — A large aquatic with erect, 

 branched stem, i — 4 feet high ; 

 leaves crectj sword-shaped, triangular 

 at the base with concave sides : 

 linear hracls : i — 3 lower ]ieads, 

 larger, pistillate ; upper, half the 

 size, stamioate, olive-bruwn in bud, 

 deciduous ; fruits broadly ovoid, 

 abruptly ?iiid shortly beaked. — 

 Ditches; common. — Fl. June, July. 

 Perennial. 



2. S. negU'ctuiu (Overlooked Bur- 

 reed). — A^ vcr\ similar plant, 

 diftering chi'efly in tlie fruits, which, 

 when ripe, are obo\"ate, tapering 

 giadually into a long beak. 



simplex (Unbranched L'pright Bur reed).— A smaller 

 plant with unbranched steui ; leaves triangular at the base, wuh 

 flat sides, sometimes floating ; heads in a raceme, the lower 

 pistillate ones shortly stalked ; the staminate ones sessile, ) cllow ; 



.'>. 



