sciRPus. TRIANDRIA. MONOGYNIA. 5i 



19. S. linentus Mich.: culm triquetrous, leafy; pan- 

 icles terminal and lateral, decompound, at length nodding ; 

 involucrum 1 — 2-leaved ; spikes ovate; glumes lanceolate, 

 somewhat carinate ; bristles longer than the seed. M i c h. 

 Fl. I. p. 32. Vahl Enum. II. p. 73. Pursh Fl. I. p. 56. 

 Elliott Sk. I. p. 87. S. lineatus et pendulus Muhl. 

 Gram. pp. 44 & 45. Trichophorum lineatum Pers. 

 Syn. I. p. 69. Isolepis lineata Roem. ^ Schult, 11. 

 p. 117. 



Culm 2 — 3 feet high, very leafy. Leaves flat, smooth, two lines 

 and a half wide, disposed in a somewhat distichous manner. 

 Panicle or umbel with elongated branches, at first erect, but 

 afterwards nodding. Involucrum a little longer than the leaves. 

 Sfiikes all on peduncles, solitary. Glumes ferruginous, with 

 the carina green. Stamens 3. Style 3-cleft. Seed triangular. 

 Bristles capillary, somewhat interwoven, 6? as long aa the 

 glumes. 



Hab. In swamps. Near Poughkeepsie, New-York. Mr. 

 Dudgeon. Plainfield, Massachusetts. Dr. Porter. Au- 

 gust. In sandy wet woods ; New- Jersey to Carolina. Pursh. 

 In Pennsylvania. Muhlenberg. 



There is a little confusion respecting this plant. Pursh 

 affirms that there are no bristles at the base of the seed, 

 Elliot ty also, remarks, that the seeds are naked. But 

 Mu hie nb erg, who evidently describes the same plant, ob- 

 serves that the bristles are longer than the seed ; and so I have 

 found them in my specimens. Hence it appears that the bristles 

 are occasionally wanting in this Scirpus, as they are in S. te- 

 nuis, &;c. 



*■ ^ * * 



20. S. subsquarrosus Muhl.: culm triquetrous, nearly 

 naked, incurved; spikes 3, nearly terminal, ovate; glumes 

 somewhat squarrose at the tip; involucrum 2-leaved, very 

 long, unequal. Muhl. Gram. p. 39. S, minimus Pursh 

 FL I. p. 55. Elliott SA-. 1. p. 82. 



Root fibrous, perennial? Culms cespitose, almost capillary, 

 about 2 inches high, purple below. Leaves nearly radical, 

 setaceous. Involucrum of 2 leaves, one of the leaves much 

 longer than the other and appearing to be a continuation of 

 the culm. S/iikes 2 or 3, sometimes 1, ovate, turgid, crowded. 

 Glumes ovate, acute, purple and brown, carinate, striate ; the 

 extremities mucronate, a little recurved. Stamens 3. St^le 

 2-cleft. Seed naked, oblong, white. 



Hab. On the gravelly banks of rivers. On the Connecticut, 

 near Deerfield, Massachusetts, &c. Dr. Coo ley and Mr. 

 Hitchcock. In the western parts of the State of New- 

 York. In Pennsylvania. Muhlenberg. August. 



