28 TRIANDRIA, MONOGYNIA. 



long, somewhat obtuse, green on the back, margin 

 white, scarious, nerved. Stam. 3, with yellowish 

 anthers. Pistillum trifid, white. Seed brown 

 three-sided oblong, beardless. Root fibrous, ter- 

 minating at the end in a globose tuber. MuhL 

 Gram. Descrip. Uber. p. 22. 

 C. reptns, Elliot. 



This beautiful species of cypress-grass, is, for thefirst time, 

 described by Dr. Muhlenburg, in his " Descriptio Uberior 

 Graminum." It grows to the height of three feet in this vi- 

 cinity, but seldom exceeds two. 



Whole plant glabrous ; having only the margins of the invo- 

 lucre-leaves scabrous. Mr. Elliot is, I think, right, in his 

 suspicion of the identity of his C. repens and the above species. 

 A careful examination of the C. plymatodes of Muhlenberg 

 (of specimens given me by the doctor), by Mr. Elliot's de- 

 scription, leaves no doubt in my mind, that the plants are the 

 same. Whether the C. tuberosus of Vahl. as quoted by Pursh, 

 is also identical with these two, I cannot say. 



It delights in moist places In the damp meadows, near rivu- 

 lets, in Jersey, near Woodbury, and along the course of the 

 Delaware, about five miles below Philadelphia. Not very fre- 

 quent. Perennial. August. 



paniflorus. 6. C. culm triquetrous nearly naked. Radical leaves 

 linear-lanceolate, smooth, culm solitary. Umbel 

 compound. Involucrum 3-leaved longer than the 

 peduncles. Peduncles smooth, numerous (6 — 10) 

 triquetrous. Invclucellum three leaved, pedi- 

 cels numerous, spikelets three, compressed, alter- 

 nate, o\\ite, 8-flowered. Calix glumes ovate, acute, 

 brown, nerved on the margins. Stam. 3, yellow. 

 Pistillum trifid. Seed three-sided, white, beard- 

 less. Root creeping, terminating in tubers. Spike- 

 lets very often viviparous, and then cylindric, 

 scales nerved, acuminated. MuhL Descrip Ube- 

 rior. Gram. p. 19. 



Readily distinguished by its small conglomerated peduncu- 

 lated spikes, of a bay colour. About one foot or eighteen 

 inches high. Very rare. On the banks of Timber creek, 

 Jersey, not more than a mile from the Woodbury road. Pe- 

 rennial. August, September. 



autumnaiis, y, C. stem round, naked, thick, pointed. Radical 

 leaves broad and smooth. Umbels three leaved, 

 compound, terminal. Involucrum three-leaved, 



