1G TRIANDRIA MONOGYNTA 



3. C. ixFLr.xrs, MuhL Umbel conglomerate and simple, or 2 to 3- 

 rayed; involucre 3-leaved, long; spikelets oblong, crowded into ovoid 

 heads; glumes squarrose-uncinatc at the lij>. Heck, Bot. p. 421, 

 Spkcim. Gray, (tram. 1. no. 68. 



C. uncinatus. Pursh y Am. I. p. 50. Mutt, Gen. I. p. 35. Hart. PI,;!. 

 i, p. 29. 



rNFLKXKD CyPEHTS. 



Root biennial, fibrous. Culm triquetrous, setaceous, 2 t n 3 inches high, leafy ri 

 kis.e. Leaves flat, as Ions asthe culm. Heads 1 to .'5; one sessile, the others on pe- 

 duncles, or rays: each consisting of from in to 20 spike 1 tis densely conglomerai 

 Involucre fbliaceous ; one of tin 4 Leaves three times as Ion r as the uml> 1. Spike* 

 lets linear-oblong, 8 to 12-flowored. Glumes yellowish, distinctly nerved, ovato. 

 acuminate, with the points recurved. Stamen 1. (Torr.) Seed triquetrous. 

 Hah. Old fields, in moist places: Willistown : not conun n. f Y.Aug. Fr. Sent. 



Oho. Found by D. Townsjsno, Esq. in Aug. 1820. The plant is 8 >mewhat frag 

 rank Mr. Xuttull seems to think it may be a MariscuQ. 



4. C. mariscoidks, Ell. Umbel simple and sessile, or with l or 2 rave • 



spikelets linear-lanceolate, collected in globose heads; glumes loose* 



lower ones obtuse, upper ones rather acute. Becky Bot. p. 429, Spjs* 



CTM. Gray, Gram. 1. no. 74. 



Scirpus cyperiformis. MuhL Catal. p. 7. Ejusd. Cram. p. 41. 



Mariscus umbellalus. Pursh ? Am. 1. p. 59, Also ! Mutt Gen 1 /> 



34. Not of IAndL Kncxj. 



M. glomeratus. Bart. Phil. Up, 30. Floral. Ceotr. p. 9. 



Makiscus-likk Cypeiu S. 



Hoot perennial, tuberous. Culm triquetrous, slender, G to 12 Inches long, nearly 

 naked. L * g& $ 9 oaosUy radical, Hi war, keeled. Invoiwrc 3 oi •i-it.ivi.i. unequal 

 longer than the ornbel. fitofs of spikelets 1 to3,one sessile, the others peduncu. 

 late, or supported on rays 1 to 2 inches long, QfdIUUtoB to 7 or B-flowered, nearly 

 terete when young, compressed when old. Glumes remote ami 1 use, ovate, pale 

 crreen. fibed oblong, triquetrous. 

 Hub, Sterile fields ; Mica-slate hills : frequent FT. Aug. Fr. Septembers 



Obs. About 20 other species of this genus are enumerated in the U. States. 



18. MARISCUS. Vahl. Mutt. Gen. 61. 

 [Celtic, Mar, a marsh ; relating to the place of growth of some species.] 



Spikelets few-flowered, clustered in heads. Glume* somewhat imbri- 

 cated in two rows; the lower ones short and empty. Stamen* some- 

 times 2. Style trifid. Seed triquetrous. 



1. M. ovt'lauts, T r ahl. Umbel simple; ravs short; heads globose • 

 spikelets terete, spreading. Beck, Bot. p. 429. 8*xcim. Gray, Gram 

 1. no. 70. 



M. echinatus. Ell. Sh. 1. /,. 75. Icon, £//. /. r . tab. 3. f. 1. JW 



FA*7. 1 . /i.30. Ea*. Jl/an. />. 220. 



Scirpus echinatus. H7/W. Sp. \. p. 304. Per*. 5^ I. p. 68. JtfeM 



CW«/. />. 7. J^'iwL G'/v/z/i. />. 39. 



Kyllingia ovularis. Mx. Am. 1. />. 29. Also, fart, Syn. 1. p. 57. 



bGG-SUAPED MaKISCLS. 



