cyperace;e. 157 



marginal ones very little stronger than the others, green, ultimately 

 yellow or olive-yellow, concolorous, gradually narrowed into a long 

 or rather long deflexed subulate rough-edged shortly 2-toothed beak, 

 or rather abruptly narrowed into a short straight conico-cylindrical 

 rough-edged very shortly 2-toothed beak; teeth of the beak diverging. 

 Nut broAvnish-olive, obovate-triangular, barrowed at the base, very 

 obtuse, with a small mucro at the apex, very loosely covered by the 

 perigynium. 



Sdb-Species I. — Carex Oederi. Ein-h. 



Plate MDCLXXIV. 



Beich. Ic. Fl. Germ, et Helv. Vol. Vm. Tab. CCLXXH. Fig. 652, 



Billot, Fl. Gall, et Germ. Essicc. No. 1352. 



C. flava, var. Oederi, KimiJi, Enum. Plant. Vol. II. p. 446. Hook. & Am. Brit. Fl. ed. 



viii. p. 511. 

 C. flava, var. /3 patula, and y Oederi. Coss. & Germ. Fl. Par. ed. ii. p. 572. 

 C. extensa, var. )3, Maclaren, in Bot. Gaz. Vol. III. p. 25. 



Leaves narrowly linear, usually equalling or exceeding the stem, 

 stiff, faintly channelled. Male spike sessile or subsessile. Female 

 spikes 3 or 4, contiguous or approximate, or the lower one more or 

 less remote from the others, usually spreading or sjjreading-ascending, 

 oblong-ovoid or oblong, very dense and very many-flowered. Lowest 

 bract usually exceeding the male spike, often greatly so. Glumes 

 subacute, orange-brown, with green midribs, ultimately nearly white. 

 Fruit rhombic-elliptical, nearly regularly turbinate-trigonous, dim, 

 bright green, ultimately bright greenish-yellow, rather abruptly nar- 

 rowed into a short straight conico-cylindrical slightly notched beak, 

 scarcely half the length of the rest of the fruit. 



On the margins of lakes and ponds, and in marshes. Apparently 

 rather rare, but widely distributed. I have gathered it on the banks 

 of St. Ouen's Pond, Guernsey ; at GuUane Ponds, Haddington ; Loch 

 GeUy, Fife; and pools on the Fidge at Swanbister, Orkney; and I 

 have specimens from Surrey, Cambridge, Cheshire, Merioneth, York, 

 and Lancashire. Professor Babington and the " Cybele Hibemica " 

 give it as a native of Ireland. 



England, Scotland, Ireland. Perennial. Spring to Autumn. 



Plant growing in very dense tufts producing numerous flowering 

 stems in succession during the whole summer. Stems 2 inches to 1 

 foot high. Leaves about J inch broad ; sheaths of stem leaves with the 

 free scarious lobe at the apex broader than long and truncate. Male 

 spike ^ to f inch long, often androgynous. Female spikes ^ to !, inch 

 lonjr. Fruit tV inch lone:. 



