North American Cyjperacea. 261 



Cvlm 2 — 3 feet high, the angles a little scabrous near the umbel. 

 Leaves 12 — IS inches long, 3 lines wide, channelled ; the margins and 

 midrib serrulate. Spikes about an inch long, disposed at the extremity 

 of the rays. Spikeiets distinctly 4-angled in consequence of the width 

 of the rachis. >ScaZes compressed. Stamens 3. iSY^/Ze 2-cleft [?] Nut 

 triangular. — Elliott. 



Hab. On Eding's Island, near Charleston, South Caro- 

 lina, Elliott ; and near St. Mary's, Georgia, Vr. Baldwin. 

 "A rare plant in South Carolina and Georgia, but becomes 

 predominant in the live-oak forests south of St. John's river, 

 in Florida." Baldw. MS. 



Obs. This plant has not fallen under my notice. It does 

 not exist in that portion of Dr. Baldwin's herbarium which 

 has come into my possession. Mr. Elliott's description is 

 brief and incomplete, but sufficient to show that the plant is a 

 very distinct species. 



14. Cyperus strigosus, Linn. 



Umbel simple, or rather compound ; rays numerous, elon- 

 gated ; involucels mostly wanting, or setaceous ; ochreas 2- 

 bristled; spikes ovate; spikeiets 8 — 10-flowered, much crowd- 

 ed, spreading horizontally or somewhat reflexed, linear-lanceo- 

 late, flattened rachis subterete, slender; scales oblong-lan- 

 ceolatej approximate, strongly nerved, subacute and slightly 

 mucronate ; interior scales lanceolate, narrow, hyaline ; nut 

 oblong-triquetrous. 



C. strigosus, Linn. sp. 2^. p. 69 ? (excl. syn.) ; Vahl, enum. 2. p. 253; 

 Pursh,fl. 1. p. 52; Elliott, sk. 1. p. 70; Muhl..' gram. p. 21; Torr.! 

 fl. 1. p. 62, (excl. syn. Miclix.) ; Big. fl. Bast. ed. 2. p. 19 ; Beck! hot. 

 p. 421 ; Darling. ! fl. Cest. ed. 2. p. 15 ; Ram. 8f Schult. 2. p. 214 ; C. 

 A. Meijer, in Mem. Acad. St. Petersb. ( VL ser.) 1. p. 201. t. 3. 



C. Enslenii, Purshlfl. 1. p. 53; Schult.'mant.2. p. 123; Elliott, 

 sk. 1. p. 73. 



Culm triquetrous, 1 — 3 feet high, the base somewhat swollen. Umbel 

 5—9 rayed, somewhat spreading. Rays 2 — 6 inches in length, some- 

 times with one or two short partial rays. Ochrece terminating in 2 bristles 



