138 



CYPERACEAE 



S^^5'!l^f^^'"jt.|P'*^*^''- Mountain meadows: Mont.— Colo.--Ariz.— Nev. 



roiihp;^?' if ""^^^ n\ ^""Y^ '^f i:"^- ^^S^' ^^''^^P^y triangular, more or less 

 ir& thL 1 ^''f^" towards culm base the blades 2-8 mm. wide; spikes 3-7, 

 at least the lowest separate, oblong or obovoid-oblong, 1-3 cm. long 5-10 mm 



w;.thnSh ''''''^ '• "It"^ rows- scales brownish black, narrower but mostly 

 achlnes 2 m^ ^SF''"''' *^' ""'^T^ indistinct; perigj^nia 3-3.5 mm. long, oval; 

 GrPPnl A^. f w' gra^l^^'l-roughened, short-stipitate. Mountain meadows! 

 Ureenl.—AIont.—Wyo.— Alaska; Eurasia. Alp.Subalp. J^Au. 



129. C. epapillosa Mackenzie. Culms I..7-6 dm. high stiff sharnlv tri- 



Sv'flaTTn^'.'T^^ ''' towards base of the culm, the ffi/esls mS^U^ 

 aS^n^Hn; spikes 3-6, approximate or the lowest a . little separate, sessile or 



fn mtnv row ' t^T^^"^''°^°i'^' ^7^'^ ^'^^^ »°^^' ^-^^ ^^- ^i^e, closely flowered 

 Kit SJ o ' iT^ ^^ lance-ovate, sharp-pomted, brownish black, narrower than, 

 inpnf ?>«i;^^ K^ or exceeding the perigynia, the midvein more or less prom- 

 scuroV^^JT ''T'^^^' ""^^ °' obovate, 3.5-4 mm. long, 1.5-2 mm. wide, ob- 

 Wvn^ m«K ^"^f S';^/"!*^' achenes slender-stipitate. Mountain meadows: 

 wyo. — Utah— Calif. Mont.— Alp. Je-Au. 



rouS°i.?f\!^?'^fl''f". ?''''^''"-.,^^'™"' 3-10 dm. high, sharply triangular, 

 candm». fh^'^'^' ^•**' ^^ "'™' ^''^''' 'P'^'^^ 1-4 cm. long, 7-10 mm. wide, gynae- 

 SutpTrnwi" Pfu'Fu'f ^""^erous, appressed-ascending; scales lance-ovate, 

 SftPl J Toll. IV^^* midvein and margins; perigynia tapering at the apex, 

 mmutely beaked. Mountains: Alaska-Mont .-Calif. Mord.-Sub.nonL Jl^ 



mJ\ dSZl" ^['^^- ,<^^1"^3 leafy bdow, aphyllopodic or phyllopodic; term- 

 rS^tninTrTn P^^^' staminate (rarely gynaecandrous), linear, the remaining 

 uncS 'R^!f *^ "ylf^''', or oblong, closely many-flowered, sessile or ped- 

 SiltP .^H off 'i^\'' (rarely short-sheathing), leafy or squamiform, bi- 

 acmus nl.nn nrt^r darkened at he base, Perigynia membranaceous to cori- 

 bSp;. or ;K^^;^''''?''^°'/"u^''^' ^l^Pt^cto obovate, puncticulate, margined, 

 AchenS nnr^.^P / minutely beaked the orifice entire to deeply bidentate. 



basP nS rC / ^l"*^'^^^^''- Sty « slender, straight, sometimes exserted, its 

 base not enlarged. Stigmas normally 2. 



mm^wj;ip^w>r*'°^?^^- ^'■•- ^"^^^^ 1-^ d"^- high, smooth; leaf-blades 3-7 

 1^' r^n^; Ki '■^^o^^^^ margins; terminal spike staminate, linear; lateral spikes 

 sh^H ttnll;^ ^^1 ^'^ ^^^ear-cyhndric 0.5-4 cm. long, 3-5 mm. wide, sessile or 

 short-stalked , scales obtuse or acutish, blackish with lighter midvein perigynia 

 R,tl,^rT °''^' ^,^'*'^,?^ess or nearly so, the orifice entire. C. rigida Good. C. 

 EurasS! Alp "^""^^'^-^^P^^^ regions: Greenl.-N.H.-Alta.-B.C.-Alaska; 



132. C. scopulorum Hohn. Loosely stolonif erous ; culms 1-4 dm. high, 

 tPrm^i^l «Tv^^^' '°'*'''*^' leaf-blades 3-7 mm. wide, with revohite margins; 

 seS i ittf if ^'''''•''f-r.'*^™'"^*^' l^t^"-^! spikes 2-3, approximate, erect, 

 scales oMusP h ffi t^P""*'^^^^ androg>mous, 1-2.5 cm.'long, 6-7 mm! wide 

 short but T^rSL ' tlie 'nidvein obsolete; perigynia 2.5-3.5 mm. long, with 

 MaS.-^V JVaT ' '''''^^^^^- Mountains: Mont.-Colo.-Wash. 



1_a^^^" C- .Chimaphila Holm. Loosely cespitose and stolonif erous ; the culms 

 im.tde.'S'h"l?'>X\i±L^^£' l^i-^^^^^^ l-f-blades light green, 3-5 



3-4, 



terminal 



Qfammo+o ^. I A " "-'-"' ""^ ^""^t mure uisiaut, peaunclcd, the terminal 



7 10 ml ^J.^^.^^gynous, the lateral pistillate or androgynous, 1-3 cm. long, 

 obsoCmiJvfe-''^^-*'' lanceolate acute or acuminate, black, with lighter or 

 sMv nfpS^ ?' P*'"^;}*^ 2.5-3.5 mm. long, abruptly minutely beaked. Pos- 

 Alp.-slbllp jSu "'^P^''^"'" Holm. Mountain slopes: Mont.-Colo. 



134. C. aperta Boott. Stolonif erous ; the cuhns 5-10 dm. high, sharply 

 triangular, rough above; leaf-blades 2.5-5 mm. wide; terminal snike s aminate:; 



