376 ORDER 154. CYPERACE^E. 



97 C. rostrata MX. ? Spikes 1 3, capitate, near; perigynia 3", suberect, lance- 

 olatc, long-rostrate, twice longer than the acutish glume ; leaves fe\v, rolled, subu- 

 late ; culm If. Mountain bogs, N. Y., N. II., and North. 



98 C. Elliettii Sclav. Spike slender, 1'; ? 2 or 3, globous to oval, distant; 

 perigynia 1020, ovoid, veined, rostrate, 3"; glume ovate, 1"; culm slender, rigid, 

 1 2f, the narrow leaves longer. N. Car. to Fla. 



99 C. subulata. MX. $ Spike short, subsessile; ? spikes 3 5, capitate, distant, 

 3-7-ilowered ; perigynia subulate, 6", long-rostrate, divaricate and with 2 divaricate 

 teeth. Slender, smooth, light-green, 1 2f. Can. to N. J. 



100 . turgescens Torr. $ Spike slender, 1J' ; $ spikes 2 to 3, capitate to oval, 

 loose, the lowest pedunculate, exserted; perigynia 912. inflated, striate, conic- 

 rostrate, (i"; glume ovate, acute, 3". Culm 2 3f, slender; leaves long. Swamps, S. 



101 C. iiitumesceiis Iludge. $ Spike long-stalked, Blender; ? 1 3, on very 

 short stalks, capitate ; perigynia 58, very large (6^7"), acuminate-beaked ; glume 

 ovate cuspidate, 2" ; culm If; bracts very long. Wet. 



102 C. Grayii Carey. ? Spikes 1 or 2, large, capitate, dense; perigynia 1530, 

 radiating, very large (78"), with a long, slender, smooth beak ; glume inconspicuous. 

 River bottoms, N. Y., and West. 



103 C. lu |ul ina Muhl. $ Spikes 24, large, 12' by 912", the lower on exserted 

 stalks ; perigynia ascending, 6$ 7", ovoid and long-beaked, bicuspidate ; glume 3", 

 lance-acuminate. Plant stout, leafy, 2 3f. Wet grounds. 



/3. paliiufiila'a. Spikes all on long peduncles. & Glumes Hnear-awned as in (X, 

 y. androg-yna. $ Spikes staminate at apex. Approaching No. 172. 



104 C. lupuliformls Sartwell. $ Spikes 45, very large (23'); perigynm 

 ascending, 78", the long beak ronghish, bicuspidate ; glumes long-avvned, ovate, 

 3" ; nut as broad as long, the angles knobbed. Swamps : common, 



105 . tentaoulata Muhl. ? Spikes 2 or 3, dense, H 2' by 7 or 8", near, on short 

 peduncles ; perigynia 4", ovate, long-beaked, diverging, orifice obliquely 2-toothed ; 

 glumes linear-awned, 2". Stout, leafy, 1 2f. Bog;? : common. 



/3. alt i or. ? Spikes 3 4, larger (10" thick), beak subequally toothed. 2f. 



106 C. stenolepis Torr. $ Spike small (!') rarely 0; $ 15, very dense, 1 1|', 

 often $ at base ; perigynia globous, abruptly beaked, recurved, shorter than the long 

 slender-awned glumes. Related to C. squarrosa. Penn. to 111., and South. 



107 C. plantagiiiea Lam. $ Spike clavate, glumes acute; $ spikes 3 5, erect, 

 remote, loose ; perigynium 5 10, the point recurved, twice longer than the glume; 

 bracts purple, shorter than the spikes; leaves 6 10" broad. Woods. March May. 



108 C, Careya.ua. Torr. $ Spike oblong, erect; glumes obtuse; ? spikes 23, 

 remote, loose; perigynium 3 7, large (2f"), the point oblique, twice longer than 

 the glume; bracts green, much longer than the epikelets ; leaved (5 12'' wide. 

 Woods, N. Y., Pa., and \V. 



109 . platypliylla Carey. $ Spike' clavate, glume acute ; $ spikes 2 3, very re- 

 mote, small; perigynia 3 (>, small (H") ; glume cuspidate, 1" '; bracts as in C. Carey- 

 ana; leaves 610" wide, mostly shorter than the culms. Shades, N. States. 



110 C'. laxiflora Lam. $ Spike linear, glumes lance-oblong, acute; ? spikes 3, 

 slender, 1', Icose, remote; perigynia 1015, elliptic-triq., 2", the point oblique; gl. 

 oblong, mucronate, 1}" ; leaves 1-veinetl, 24'' wide, bracts long. Shades: common. 



|3. patulifolia. Root leaves 6 12" wide, bracts also wide. Otherwise as in cv. 

 y. laltfol.a* Leaves and bracts very broad ; perigynia broad, point conspicuous. 

 8. blantfa. Bracts very long, $ spike small ; ? spikes dense ; perigynia obovoid. 

 . intermedia. Leaves narrow, $ spike on a slender stalk; perigynia as in a. 

 . *ti/lott4xa. Slender, 1 2f, spike small, on long filiform peduncles, 4-0-flower*)<l. 

 111C. retrocurva Dew. Spikes small (58"), all on long capillary peduncles, 

 the $ 3, loose; perigynia broad-ovate-triquetrous, scarcely oblique-p< inted ; gl lines 

 awnccl ; culms weak, If, leaves radical, wide (4"), flat, glaucous. Open woods : :ar-i. 

 112 C. <liitAlis Willd. $ Spike slender, 1', stalked; 9 spikes 3, loose, 6-12", r 



