i8& TETKANDRiA. BIONOGYNIA. bartono. 



Hab. In swamps and wet woods ; generally among sphagnum, 

 August— September. Sometimes very minute, and I -flowered. 

 I have restored the name originally given to this plant by 

 Mu hlen ber^, on account of its priority. 



113. EXACU]\I* L, 



Calyx deeply 4- parted. Corolla 4- cleft ; tube glo- 

 bose. Capsule subsulcate, 2-cellef\ inany-seededy 

 opening at the summit; cells 2-seeded. Gen. pi. 185, 

 J\'utt. Gen. I. p. 101. Juss. p. 142. Lam. III. t» 

 LXXX. liocm. ^ Schult. Gen. 437. Nat. 

 Ord. Gen ti a n^e Ju s s. 



E. pulckellum Ph. : calyx 4*parted ; segments subulate ; 

 panicle corymbose; peduncles filiform. Pursh Fl.hjp, 

 iOO. Rotrn. 4)- Schult. 111. p. 15^. 

 IIab. Near the sea-coast of New-Jersey ; rare. August. 

 Flowers rose-coloured- Resembles 'E.Jjli/orme. 



119, SWERTIA. L. 

 Calyx flat, 4 — 5-parted. Corolla 4-parted; seg- 

 ments spreading, with 2 nectariferous ciliate pores at 

 the base of each. Style short; stigmas 2. Capsule 

 1-celled, 2-valved, acuminate. Gen. pi. 449. Nu 1 1» 

 Gen. I. p. 102. Juss. p. 142. Lam. 111. t. CIX. 

 RoemU Schult. Gen. \l\2. Halenia Borkh. 

 Nat. Ord. Gentians Juss. Pentandria digy- 

 nia L.y Willd.i &c. Felwort. 



1. S. deflexa Sm. : corolla campanulate, with deflexed 

 horns at the base ; leaves ovate ; branches short. Sm i t h in 

 Rees^ Cyclop. G oldie in Edin. Phil. Jour. VI. p. 321, 

 S. cornicidata Pursh Ft. I. p. 100,, nee L. Muhl. Cat. 

 p. 29. Mich. Ft.}. ^. 07.! S. Michauxiana Rotm. ($.- 

 Schull.yi.V 130. 



Root biennial. Stem a foot and a half, or 2 feet, high, quadran-' 

 gular, nearly simple, or with a few short axillary branches. 

 Leaves opposite, sessile, ovate, 5-nerved. Flowers greenish- 

 yellow, in terminal fascicles. Segments of the calyx linear- 

 lanceolate. Corolla persistent ; segments ovate, acute, longer 

 than the calyx ; horns subulate, bent downward, but spreading 

 as the fruit ripens. Stamens 4 ; Jilaments alternating with 

 the segments of the corolla ; anthers oblong, incumbent. 

 Style very short. Capsule terete, acuminate, a little oblique 

 toward the extremity- Seeds numerous, oblong-cyiindrical> 

 obtuse, yellow. 

 Hab. On the borders of lakes, n^ar Fairfield, New-York; 

 Prof. Had ley. 



