ftscLEPiAs. PENTANDRIA. DIGYNiA. 286 



cent lines ; leaves mos% verticillate, narrow-linear, revolule ; 

 nectaries short, . bidenttte ; horns falcate, much exserted. 

 Willd.Spec.\,p.l^7T. Mich. F/. ].p, lie. Pursh 

 FL I, p. 1 83. B i g. Bost. p, 63. Elliott Sk. I. p. 321. 

 JSfiitl. Gen. 1. p. 168. IV a 1 1. Car. p. 106. Gron. Virg. 

 p. 26. Pluk. Maat. t. 336. f. 4. R o e m. <^ Schutt, 

 fV. p. 76.. . . 



Stem about 3 feet high, yery slender, marked, with 5 or 8 paral- 

 lel pubescent lines. Leaves geaeraliy in whorls of 5 or 6, 

 about 3 inches long, scarcely more than a line wide, distinctly 

 revolute on the margin. Umbels terminal, axillary, erect, 

 numerous, often verticillate to*vards the upper part of the 

 stem ; peduncles and fiedicels slender. Flowers small. Co- 

 rolla grayish-white. Leaflets of the nectary ovatci obtuse, 

 spreading, rather shorter than the antheridium, with an acute 

 y looth on each side ; tube disdnct, much constricted ; horns as 



^ long again as the leaflets, incurved over x\\g stigma. Cor- 

 puscules triangularly produced at the base. Follicles long, 

 slender, smooth. 



^AB. On dry hills ; particularly in lim .i; regions. Abun^ 

 dant at Kingsbridge, New-York, &c. 



* * Leajiets altern 



M. A. tuberosa L. : stem erect, 'y, with spreading- 

 ■)'-anches , leaves oblong-lanceolate. jile ; umbels numo- 

 ;ou§, fonnii g terminal corjmbs. /, p. 316. Wi I ' d. 



Sfec. I. p.' ir'3 /¥ / ch. FLLp . Pursh FL 1. p.' 

 r'83.. B g. ^ . Ejusd Med. Bot.U.p.5d.t.26. 



•'^a r t. Vcg. Mat. 'M ed. I. t. 22. Elliott Sk. I. p. 32 j. 

 V'o e m. (^ Schult. VI. p. 84. Dill. Elth. t. 30. f. 3 \. 



J M very large, tuberous. Stem about 3 feet hi^h, generally 



' V:Ty hairy, with spreading branches towards the top. "^ Leaves 

 stc^'le, on very short petiolas, sometimes opposite on the lower 

 pArt of the stem, hairy on bolh sidejs. Umbels numerous, erect 

 te. ..ijtiating the branches. Flowers large, brigiit-orantrc. 

 Leafle's of the nectary erect, oblong, as large again as the a«- 

 (heridium, entire, not cucullate ; tube short; horn subulate 

 shorter than the leaflets. Cor/iuar -.? greenish, triangularly 



, produced at the base. F'ollicles smoottj. 



Hab. In sandy fields ; common. Auj.>ust. Pleurisy-root 



Butterjly.iveedy he. 

 The root of this plant is in great repute for its medicinal 

 virtues in pleurisy and other pulmonic aff"ections. 



190. GENTIANA. L. 



Calyx 4— 5-parted, or cleft. Corolla tubular at the 

 base, campanulate; border 4 — 5-cleft; segments ci- 



