228 



CYPERACE.E. 



Carex. 



Spikes 3 to 5 ; male 1 : perigyniurn covered with long white 

 hairs, sharply tnangnlar-ellipsoidal, acute at each end 

 T?«nV .f ~ ^-"P'^*^^ oil the sides, the beak very short-bidciitate. ' 

 ±5eak of i)engynmm more or less elongated. 

 Beak eniarginate or obliquely truncate. 



Spikes cylindrical, 2 to 4 ; the male 1 to 3 ; female 1 or 2 • peri- 

 gyniurn tnangular-ellii.soi.lal, turgid, nerved, densely gran- 

 ular, beak o hli.iuely cut with conspicuously hyaline oHfice. 

 Spikes 5 to/, cylindrical; the male single: perigyniurn eUip- 

 soidal, turgid divergent, nerveless, glabrous, abruptly roi- 

 tellate, the obhtpie orifice hyaline : scales 3-nerved 

 Spikes 5 to 11, oblong-cylindrical ; the male 2 or 3 : perigyniurn 

 inflated, glabrous, ovoid or lanceolate, rostellatc oUsoletelv 

 nerved, the orifice entire and hyaline. ^ 



Pubescent : spikes 3 to 5, oblong or cylindrical ; the male 1 or 2 • 

 pengynium smooth, ellipsoidal, sharply angled, rostrate' 

 nerved the orifice emarginate : scales 3-nerved, ciliate ' 

 Pubescent throughout : spikes 5 to 8, cylindrical ; the male 1 • 

 pengj'nium tnangular-obovoid, abrujitly rostrate, the ob- 

 hque orifice entire: scales 1-3-neived 

 Beak bidentate. 

 Perigyniurn smooth. 



Spikes 3 to 5, cylindrical, slender; the male 1 : peri^rynium 

 ellipsoidal, short-beaked, acute at base, nerved : Sg™ 

 of the sharp teeth ciliate. ° 



Spikes 3 or 4 linear, loosely-flowered : perigyniurn ellipsoi- 

 ieeVdlhte ' "''''''^' '^^'^-^^^^^d' ^^^ obtuse wldte 



^^iv^f ^ i"" 6, oblong; the male 1 : perigyniurn oblong or 

 o^jtj^o^soletely nerved, the beak sermte: scales 1-3- 



^^iw'?"!i"'^1f^ or club-shaped; the male 1 to 3 : bracts 

 shorter than the peduncle, their sheaths enlarging upwards • 

 perigyniurn membranous, compressed-triangular, s enderiv' 

 nerved : stem tall : leaves 2 to 4 lines broad ''*^"^^"^y 



Slender: spikes 3 to 6 ; male 1 or 2, cylindrical; female 



w?i i5^"Kar ''"^""'^'' ""■"^'' '''' '''''' ^^'^'-^ ■■ 



Perigyniurn hirsute, 

 ^^nvnf 1^ \^^ ' 1"'''^' ]^?^'- Pengyiiiuni coriaceous, hispid, 



^Ll/, ''^^ ^''/^''^> ^^'''i'^^y short-beaked with diver- 

 gent teeth, nerved. 



Spikes 4 or 5; male 1 : perigyniurn ellipsoidal, glabrous at 

 . . base, hirsute at top, slightly nerved at base. ^ 

 Pengynium long-beaked, large, inflated (except n. 78), bicuspidate 

 Male spikes 3 to 5 ; female 2 to 4 : perigyiium ovoid or Tan eo- 



late, strongly nerved, the teeth long and slender. 

 Male spikes 2 to 4 ; female 1 to 3, ren>ote7 perigyniurn globular- 

 ovoid, inflated, 8 - 10-nerved S UUUlcU 



^^^^^ liZl"" ^ ' *'^'''^' ^ ^" ^ = perigynium ovoid or conical, 

 ascending, many-nerved. ' 



Soi '" V ^"''^' ' *° ^ = perigyniurn ellipsoidal or 

 globose-oyoid, often squarrose : scales awned : stem si.onav 

 at base : leaves conspicuously nodose. °^ 



Male spike 1 ; fen.ale 3 to 5, drooping: perigynium subturgid 

 ?Pu,W \'^ ■''^''•*f 'f ' r ^'l"^"^ 3-ang'led,°attenuate to a W 

 slender bicuspidate beak, the subulate teeth divergent" 

 scales hispidly awned ^^vci^uil. 



64, 



66. 



67. 



. C. TRIQUET]l.\. 



. C. rOLYMORPHA. 

 . C. AMPLIFOLIA. 



C. Cheeokeensis. 



C. WlIITNEYI, 



C. Sakfwelliana. 



C. CINNAMOMEA. 



. C. Mendocinensis. 



C. LUZULINA. 



C. LTTZUL^EFOLIA. 

 C. FULYA. 



C. FILIFORMIS. 

 C. GYNODYNAMA. 



C. TRICHOCARPA. 

 C. MONILE. 

 C. VESICARIA. 



7. C. UTRICULATA, 



§ 1. Spike solitary, terminal, androgynous, staviinate 

 * Bracts colored, scale-like 



C. PSEUDOCYPERUS. 



top : stigmas 3. 





