TRIANDRIA MOXOGYNIA 25 



Schcenus glomerate*. Willd. Sp. Up. 266. Pers. Syn. 1./;. 59. Muhl 



Catal.p.6. Ejusd. Gram. p. 8* 



8. capitellatus ? Mx. dm* 1. p. 36, :+ : ^ 



.*/*©.? S. capltatus. 7'er*. ,fy/i. I./a 60. .1//////. Catal.p. 6. Z>*& 



Gram. p. i0. 



Clistkhki) Rhtnchospoba. Vulgo— Brown liog-rush. 



7?oo/ perennial. Cttfrn 2 feet high, leafy and smooth. Z,*arc.<? linear, shorter 

 than the culm, keeled, margins scabrous. Spikelets in corymbose or subcapitate 

 fascicles, on Included or somewhat exserted peduncles, terminal and lateral often 

 two or more from the same sheath ; the lower ones distant. Glumes duvk chesnut 

 brown, lanceolate, keeled, mucronate. Style bifid. Seed brownish, attenuate at 

 base, smooth and shining. Tubercle subulate, compressed, as long as the seeik 

 Bristles retrorsely hispid, nearly as long as the seed and tubercle. 

 Hub. Swamps, and Bog meadows : common. Ft June. Fr. August. 



3. R. ctmosa, .V////. Culm triquetrous ; leaves flat, linear; corymbs 

 somewhat cymose, terminal and axillary, the terminal ones larger; seed 

 subcompressed, obovatc, transversely undulate-rugose, 3 or 4 times as 

 long as the tubercle. Beck, Bot. p. 42i>. Not of Ell. 

 Schcenus cymosus. Willd. Sp. 1. /;. 265, Per*. Syn. 1. p. 59. Muhl, 

 Catal.p. 6. Ejusd. Gram. p. 8, 

 Cymose Ruynchospoha. 



Knot perennial. Culm 12to 16 inches high, leafy, slender, acutely triangular, an- 

 gles slightly scabrous Leave* grass-like, keeled, smooihish ; radical ones some- 

 what crowded, upper cauline outs often overtopping the culm; sheaths striate, 

 Spikelets in fascicled cyin- s, aggregated in clusters of .'J t<» 5, at the ends of the pe- 

 duncles; peduncles unequal, with setaceous bracts at the divisions. Glumes fus 

 cous ; the lower ones obcordate, mucronate, the others ovate, mutic. Style bifid, 

 &i</pale brown, corrugated, compressed, or somewhat tumid. Tubercle depress- 

 ed-conic, whitish, about one-third the length of the seed. Bristles 3? (6, GrayJ 

 shorter than the seed, slightly hispid upwards. 



Bab. Moist grounds : Eachus' clearing, near W. Chester : rare. Fl. July. Fr. Aug. 

 Obs. I find in this species but three minute bristles, along with the persistent fila- 

 ments. The plant is somewhat rare, here, and was first detected by i). Towxsend, 

 Esq. in 1832. There arc 27 other species in the U. Suites ; all of which are fully 

 described in Dr. A. Gray's excellent Monograph of North American Rhyncbps.-'' 

 pora?, published in the 3d Vol. of the Annals of N. Y. Lyceum. 



B. Flo-wers chiefly Monoicous, or Diclinous. 



DIV. I. Sclereje— with Fruit ?iaked, more or less hard and bony. 



23. SCLERIA. L. JSTutt. Gen. 734. 

 CGreek, Skleros, hard ; in reference to its hard, bone-like seeds* 



Moyoicors : Staminate and Pistillate Flowers in the same clusters. 

 Stam. Fl. Glumes 2 to 6, mucronate, many-flowered. Pale a mutic, oj 

 unarmed. Pistil. Fl. Glumes 8 to 6, 1 -flowered Pale* 0. Stigmas 

 \ to 3. Seed, or J\*ut, globose, colored. 



U S. triolomehata, J\Lv ? Culm acutely triquetrous, scabrous ; 

 leaves broad-linear, somewhat scabrous ; spikes gubtermuial, alternate, 



3 



