362 HEXANDRIA. MONOGYNIA. Jukcu*. 



* » * Stems leafy, 

 f Leaz'es nearly filane^ grooved above. 



7. J. marginatus R o s t k. : leaves flat, smooth ; corymb 

 terminal, simple, proliferous ; heads 5 — 10-flowered; flowers 

 triandrous; leaflets of the perianth about as long as the ob- 

 tuse capsule; the exterior ones and the bracts subaristate. 

 Rostk. June. 30. t. 2. f. 3. Purs h Fl. I, p. 236. Muh L 

 Gram, p, 202. J. aristulatns Mich. Fl. I. p. 192. Et- 

 liotl SA-. I. p. 408. J. triglumis W alt. Car. p. 124. 



Root tuberous and creeping. Stem a foot or 18 inches high, 

 compressed. Leaves mostly radical, flat, linear, sheathing at 

 the base; a single one on the stem, which is a Httle canalicu- 

 late. Panicle of 3 — 5 globose heads on unequal peduncles, 

 longer than the erect bract at the base. Heads generally 

 about 6-flowered. Leaflets of the perianth unequal ; the 3 

 exterior, as well as the bracts at their base, subaristate ; the 3 

 interior obtuse, margined. Stamens 3, inserted at the base of 

 the exterior leaflets of the perianth. Cafiaule obtusely trian- 

 gular. Seeds numerous, yellow, acute at each extremity, and 

 a little curved, conspicuously striate. 



Mab. In low grounds ; not uncommon. August 



^,? odorulus* : stem tall, subterete, leafy ; panicle muck 

 branched, proliferous. 



Root —. Stem 2-~3 feet high, slightly compressed. Leaves a 

 foot or more in length, 2 lines broad ; all of them flat, very 

 smooth. Panicle terminal, subcorymbed, much branched- 

 Heads very numerous, twice or thrice proliferous. Leaflets 

 of the fieriant/i unequal, rather shorter than the capsule ; the 

 exterior ones lanceolate, subaristate ; the others obtuse and 

 scarious on the margin. Stamens 3. Cafisule subglobose, 

 very obtuse. Seeds very numerous, yellow, acute at each ex- 

 tremity, striate. 



Hab. In moist woods. Bloomingdale, near New-York. August. 

 This variety has an odorous smell, similar to that of Vanilla. 



8. J. Irijidus L.: sheaths ciliate ; those at the base of the 

 stem leafless ; bracts foliaceous, very long, grooved ; heads 

 about 3-flowered, terminal; stem 1-leaved. Bich. in Lin. 

 Trans. XIL p. 314. fTi / / rf. Spec. II. p. 208. Eng. Bot. 

 t. 1482. 



Hoot creeping. Stem about 6 inches high. Leaf mostly soli- 

 tary near the summit, linear-setaceous ; sheaths with finely 

 laciniate stipules ; the lower ones with only the rudiments of 

 leaves. Flowers mostly in a single head, with 2 long setace- 

 ous bracts at the base resembling the leaf on the stem. Leaf- 

 lets of the /lerianth ovate, acute. Cafisule oblong, acuminate. 



Hab. On the White Hills of New-Hampshire. Jiig elo iv: 



