410 CYPERACEJE. [C.VREX. 



spike, though sometimes smooth ; lower spikelets usually compound at the 

 base. Fruit lenticular, ovoid. DISTRIB. N. Germany, Tyrol. Probably a 

 hybrid between remota and either vulpina or muricata. 



C. Bcenniitgltausenia'tia, Weihe. is apparently a hybrid between C. axillari* 

 and remota ? having the 3-quetrous scabrid stem and often compound lower 

 spikelet of axillaris, and the more slender habit and smaller spikelets of 

 remota. Bracts sometimes wholly suppressed ; glumes very pale and mem- 

 branous. Perigynia as in both, shining; ripe fruit (Herb. Boott.) small, 

 almost orbicular, brown, smooth. Wet copses, &c. from Aberdeen and 

 Banff to Kent and Sussex, not found in Ireland (rare on the Continent). 



**** Spikelets male at the base, or both at the top and base, crowded into a compact 

 head or spike. Bracts or subulate. 



16. C. lepori'na, L. ; stout, leaves narrow, spike lobed compact, peri- 

 gynia elliptic-ovoid plano-convex striate equalling the lanceolate acute 

 glumes, margins winged and long 2-fid beak serrulate. C. ovalis, Good. 

 Wet places, ascending to nearly 1,700ft. in the Lake District ; 9. June. Root- 

 stock tufted; stolons 0. Stem 6-12 in., 3-quetrous, slightly scabrid above. 

 Leaves shorter than the stem, flat, T *j-^ in. broad, points fine. Spike f-1 in., 

 often as broad, pale' brown, compressed ; spikelets male at the base only ; 

 bracts usually 0, sometimes subulate (C. argyroglvchin, Lond. Cat. 18t>7, 

 not Hornem.). Glumes pale brown, midrib green, edges whitish, acuminate 

 or cuspidate. Perigynia sessile, with a thin wing from the base upwards. 

 Fruit stipitate, oblong, lenticular, shining. DISTRIB. Europe (Arctic), 

 Siberia, W. Asia, Greenland, Rocky Mts. 



17. C. canes cens. L. : slender, leaves narrow, spike interrupted, bract 

 or minute, perigynia elliptic-ovoid plano-convex ribbed equalling the 

 ovate acute pale glumes, beak short 2-fid serrulate. C. curta, Good. 

 Bogs and marshes, from Isla and Elgin to Devon and Kent ; ascending to 



nearly 2,200 ft. in the Highlands ; fl. June-July. Rootstock tufted ;. stolons 

 0. Stems 12-18 in., 3-quetrous, longer than the leaves, hardly scabrid 

 above. Leaves flat, ,^-jj in. broad. Spike J-l in., slender, spikelets 3-8, 

 ovoid, male at the base only; bracts 0,. rarely 1, subulate. Glumes very 

 pale, edges broad scarious. Periyynia erect, pale olive, not winged, ribs 

 slender, beak obscure. Fruit ovoid or obovoid, lenticular, pale. DISTRIB. 

 Europe (Arctic), except Spain and Turkey, N. Asia, N. America, S. Chili. 

 VAR. 1, canes'ceiis proper ; spikelets many-flowered, glumes nearly white, beak 

 obscurely toothed. VAR. 2, alpic'ola, Wahl. ; spikelets fewer "few-flowered, 

 glumes browner, beak deeply 2-fid in fruit. C. vitilis, Fries. More Alpine, 

 ascends to 3,600 ft. in the Highlands ; absent from Ireland. 

 IS. C. lagopi'na, Wahl.; stem wiry, leaves flat, spikelets 2-4 small 

 crowded, bracts minute, perigynia elliptic-ovoid biconvex ribbed exceed- 

 ing the ovate acute glumes, beak short 2-fid. C. leporina, L. in part. 

 Aberdeenshire Alps, at about 3,600 ft. ; very rare ; fl. Aug. Rootstock tufted ; 

 stolons short. Stems 6-10 in., 3-quetrous, often curved below, smooth or 

 scabrid above. Leaves ,\,-J in. broad. Spikelets ^ in., ovoid. Glumes few, 

 broad, dark brown, midrib green, edges white. /'<//>////// red-brown. I' ruit 

 obovoid. DISTRIB. Arctic and Alpine Europe, N. Asia, N. America. 

 19. C. elonga'ta, L. ; slender, leaves narrow, spike slender, spikelets 

 many close, perigynia elliptic-lanceolate biconvex ribbed much exceeding 

 the ovate acute glumes, beak subulate entire decurved. 



