CAREX.] CYPERACEJE. 459 



short, flat, keeled. Spikelets sessile ; male slender ; female -| in., sub- 

 globose ; bracts hardly leafy. Glumes rather spreading, brown, midrib green, 

 edges brown or narrowly pale. Perigynia opaque, hardly 3-gonous, pedicel 

 flat. Nut subglobose, brown. DISTRIB. Europe (Arctic), W. Asia, Kamts- 

 chatka, N. America. YAR. Lee'sii, Eidley (C. saxum'bra, Lees), is a drawn- 

 out form growing in shaded places in Yorks. 



40. C. monta'na, L. ; slender, leaves narrow, bract glumaceous, spike - 

 lets few small close, perigynia obovoid 3-gorious hirsute ribbed exceeding 

 the obovate mucronate glumes, beak notched. C. colli'na, Willd. 



Heaths, woods, and fields, local; "Worcester, Hereford, Monmouth, Gloster, 

 Devon, Hants, Sussex ; fl. April-May. Eootstock very stout, creeping and 

 tufted. Stems 6-18 in., 3-quetrous, strict, then curved, scaberulous above. 

 Leaves T ^-| in. broad, usually shorter than the stem, straight or flexuous ; 

 young pubescent. Spikelets sessile, usually very close, bright red-brown, 

 polished ; male in., solitary, stout ; female 1-3, ^- in., more slender, few- 

 fld. ; bract broad ; membranous, awn subulate or green or 0, sheath very 

 short. Glumes broad, chestnut-brown, embracing the spreading substipitate 

 perigynia, obtuse or retuse and mucronate, midrib pale, edges brown. Nut 

 pedicelled, pale. DISTBIB. Europe, W. Siberia. 



41. C. ericeto'rum, Poll. ; stems short curved, leaves recurved keeled, 

 bract glumaceous, spikelets few capitate, perigynia obovoid pubescent 

 equalling the broadly ovate obtuse ciliate brown glumes, beak entire. C. 

 cilia' ta, Willd. 



Chalk banks, Norfolk, Suffolk, Cambridge ; fl. May-June. Rootstock branched, 

 creeping and tufted. Stems 2-6 in., 3-gonous, stiff, smooth. Spikelets 

 sessile, small ; male | in., solitary, fusiform ; female - in., 6-10-fld. ; 

 bracts hardly sheathing. Glumes pale brown, midrib concolorous ; margins 

 broadly scarious. Perigynia subsessile, opaque, short. Nut obovoid, sessile, 

 pale, 3-quetrous. DISTRIB. Europe (Arctic), N. Asia. 



42. C. digita'ta, L. ; stems slender curved, leaves recurved flat, bract 

 subulate, sheath long brown, spikelets slender curved, perigynia remote 

 stipitate narrow-obovoid 3-gonous pubescent embraced by the mucronate 

 shining glumes, beak very short straight entire. 



Copses on limestone, York, Derby, Notts, Hereford to Devon and Wilts ; fl. 

 May. Rootstock very stout, tufted. Stems 6-10 in., smooth, obtusely 

 3-gonous. Leaves - in. broad, soft, flat, linear. Spikelets and their slender 

 pedicels enclosed in the bracts; male solitary, ^-f in., female 2-3, -1 in., 

 6-8-fld. ; bracts membranous, brown, tip green subulate. Glumes con- 

 volute, broad, obtuse, scarious, pale red-brown, midrib narrow green, 

 margins hyaline. Periyynia concealed, curved, green, beak terete. Nut 

 stipitate, 3-quetrous, brown. DISTRIB. Europe, Siberia. 



C. DIGITA'TA proper ; bracts subulate, female spikelets close, perigynia equal- 

 ling the glumes. 



Sub-sp. C. ORNITHOPO'DA, Willd. ; bract ovate awned, female spikelets distant, 

 perigynia longer than the glumes, beak 0. Derby, York. 



