AcoRus. HEXANDRIA. MONOGYNIA. 359 



6-petalled, naked. Stigma sessile, very minute. Cap- 

 sule 3-celled. Gen. pL 586. Nutt. Geri. I. p. 

 227. Ju s s. p. 25. L a m. Ill, t. CCLII. Nat. 

 Ord. AROiDEiE Juss. Sweet-Jiag.— Calamus* 



A, calamus L. : spadix protruding from the side of an 

 ensiform leaf. Wi 1 1 d. Spec. 11. p. 199. Smith FL Brit. 

 J. p. 373. £ng. j5o/. t. 356. jlf i c A. i^/. 1. p. 194. Pursh 

 FL I. p. 235. B ig. Bost. p, 83. Elliott Sk. I. p. 403, 

 Walt, Car. p. 124. 



■Root thick, creeping, horizontal, aromatic. Leaves ensiform, 

 2 — 3 feet long. Sca/ie ancipital, leafy above the spadix, which 

 protrudes from its side above the middle. Sfiadix cylindrical, 

 thick, 2 inches or more in length, tessellated with minute 

 greenish flowers. Petals ovate, obtuse, a little inflexed at the 

 summit. 5ra772en« alternating v/ith the petals, and somewhat 

 exceeding them in length ; anthers minute, erect. Gcrmen 

 bblong, superior ; stigrna punctiform. Cafisule triangularj^ 

 obtuse, 2-celled ; cells 2 — 4-seeded. Seeds ovate. 



Hab. In swamps, and on the borders of rivers and ponds ; com* 

 mon. June. Certainly indigenous. 

 The root is a well known carminative. 



250. JUNCUS. L. 



Perianth 6-leaved, glumaceous. Capsule superiofp 

 3-celled, 3-valved; cells many-seeded. -S'e^f/.s attached 

 to a partition in the middle of each valve. Gen. pi. 

 590. Nutt. Gen. I. p. 227. Juss. -p. U. Lam. 

 III. t. CCL. Nat. Ord. Junce^ Juss. Leaves 

 glabrous, mostly rounded. Rush, 



* Sca/ies naked ; ( fioivers lateral.) 



I. 3. effu&us L.: scape minutely striate, (soft); panicle 

 loose, very much branched, spreading ; leaflets of the peri- 

 anth lanceola'te, acuminate, rather longer than the obovate 

 ©btuse capsule. B i c h. in Lin. Trans, XII. p. 303. Wi lid. 

 Spec. II. p. 205. Eng. Bot. t. 836. Pursh Fl. I. p. 236! 

 B i g. Bost, p. 83. 31 u h I. Gram. p. 204- Elliott Sk-, 

 I. p. 405. Wa It. Car. p. 124. 



Root fibrous, perennial, cespitose. Scafie 2 — 3 feet high, erect, 

 simple, soft and pliable, filled with a spongy pith, slightly 

 striate, terminating in a long filiform extremity. Panicle burst- 

 ing from a fissure in the side of the scape, about half way 

 down, sessile, much branched, and often proliferous, bracteate 

 s(t the base. Leaflets oi the Jierianth very acute. Stamens 3. 



