Order 155.— CYPERACE^E. Y65 



glumo; culm If, erect; lvs. short, flat, both glabrous. — Ga, Fla. (C. Chapmaai"; 

 Sartw.) 



143 C. Richardsonii R. Brown. 6 Spike oblong:, erect, stalked, with ovate, 

 obtuse, brown, white-bordered glumes; 2 spikes 1 to 3, smaller, oblong, lax, the 

 upper near, the lowest more remote, all longer than the broad, membranous, white, 

 obtuse bract ; perig. ovate-triquetrous, very obtuse, scarcely beaked, orifice entire, 

 below tapering, pubescent, scarcely equal to the brown, ovate, acute, white- 

 edged glumo; culm 4 to 10', scabrous, longer than the scabrous leaves. — -"Woods, 

 Greece, N. Y. (Bradley), 111. (Mead.), and Arc. Am. A fine species with a wide 

 range. 



144 C. dasycarpa Muhl. (B. t, 57.) $ Spike oblong, erect, subsessile, small; 

 $ spikes 2 or 3, short-oblong, alternate, hoary, the lowest remote, bracts longer 



than tlie culm ; perig. oblong-ovate, triquetrous, short-beaked, veined, dense-vil- 

 lous, cmarginato at orifice, longer than the ovate-acuminate glume ; culm 8 to 14', 

 triquetrous, glabrous, longer than the hairy, narrow-lanceolate lvs. ; grayish green. 

 —Dry fields, N. Car. to Fla. 



145 C. Michigansis Dew. Terminal spike stamiuate, oblong-clavate, erect, 

 short stalked ; $ spikes 1 to 3, rarely 4, oblong-filiform, lax, some or all three 

 stam. at apex, squarrom-braded, the upper sessile, lower short-stalked ; perig. (too 

 young) oblong-obovale, lance, acute, bifid, some villous, shorter than the oblong, 

 acute, rusty brown gl. ; culms clustered, G to 14', slender, triq., shorter than tlie 

 linear, stiff; rough-edged lvs. — Mich. (Wm. Boott, Esq.). 



146 C. Torreyi Tuckm. $ Spike oblong, short ped. ; ? spikes 2 — 3, short, oblong, 

 subsessile, erect; perig. oblong, obovate, very obtuse, glabrous, subtriq. entire at tho 

 orifice, subrostrate, twice longer than tho acuto gl. ; st. 12 — 18' erect, triq., with 

 subradical and pubescent lvs. — Palo green. N. Y. (Tuckerman.) 



147 C. Crawei Dew. $ Spikes 3 — G, cyl. short and thick, densely flowered, some- 

 times aggregated, sometimes remote, tho lowest often subradical and long-ped. ; 

 perig. ovate, terete, scarcely rostrato, diverging, entire at the orifice, twice longer 

 than the ovate and obtusish gl. ; $ spike with one or two small ones at its base. 

 — Jeff. Co., N. Y. It commemorates tho namo of Dr. Crawe, its discoverer, who 

 was soon after drowned, on a botanical excursion, in Griffin's Bay. 



148 C. ignota Dew. & Spike cyl., slender, erect, long-stalked, scale-bracted, 

 with oblong, obtusish gls. ; £ spikes 2 or 3, oblong, lax, erect, leafy-bracted, the 

 lowest long-ped. ; perig. elliptic-triq., tapering below, conic-rostrate, slender, entire 

 at tho orifico or slightly 2 -toothed, recurved more or less, a little longer than the 

 ovate, acute, lane, or cuspidate gl. ; culm IS to 24', pale green. — La. (Hale). 



/?. fusiformis. A smaller form ; perig. more spindle-form, and tho glume 

 acuto, shorter in proportion. Fla. (C. fusiformis Chapman.) 



149 C. scabrata Schw. 8 Spike short-stalked ; 5 spikes 3 — G, cyl., subrecurved, 

 remotish, long-ped. ; perig. ovate-oblong, subiuflated, subbitid, rostrate, quite 

 scabrous, longer than the ovate-lane, acuminate, short-bidentate, ciliate gl. ; culm 

 1 — 2fj acutely triq., rough, above, longer than tho lvs. towards the base. — Bright 

 green. Along brooks and streams, common. N. States, N. Car. (Curtis). 



150 C. Bubulata Ik. $ Spike erect, small, short, with lane, whito gl. ; $ spikes 

 3 to 5, oblong, 3 to 7 -fruited, distant, sessile above, the highest close to the stam- 

 inatc, tho lower exscrt-ped., leafy-bracted, sometimes $ at apex ; perig. subulate 

 or lance-ovate, long, rostrate, slender, veined, glabrous, with 2 curved teeth di- 

 varicate or reflcxed, more than thrice longer than tho white, lane, gl; culm 6 to 

 14 to 24' high, very slender, lax, smooth ; lvs. smooth, striate, flat, shorter thau 

 tho culm ; very light green. — Can. to N. J., along the coast. 



15.1 C. pallescen3 L. 5 Spikes 2 — 3, oblong, short, cyl., distant, yellowish 

 green, nodding towards maturity ; perig. oval, obtuse, round, about equal to, or a 

 little shorter than, the ovate, pale gl ; st. G — 1G', hardly erect; bracts sometimes 

 transversely rugous. — Plant often subpubesccnt, aud of a light green. In dry 

 meadows. Common. — C. undulata Kunze, is admitted by Kunzo himself to be 

 only var., differing chiefly in its wavy, lowest bract. 



152 C. Iim6sa L. $ Spikes 1 — 3. ovate or oblong, long-ped., subloose-flowered, 

 emoothish, pendulous ; perig. elliptic, compressed, very short-rostrate, entire at 



