132 »EXTAXDRIA MOXOGYXIA 



sinus ratho.r contracted, lobes rounded, apex acuminato— aomnimes the sidr« 

 contracted, or sub-lobad, giving the leaves somewhat of a fiddleshape; petioles 1 

 n 5 and an hah" inches long. Peduncles 2 to J or 6 inches long, terete, often 

 branched at summit, generally l earing 2 or 3 to 5 flowt rs, in fascicles; 6rac/s at 

 0\e base of th< pedoncles, small, resembling stipules. Calyx of 5 ovate-oblong se- 

 pals (or deeply 5 parted), about one f >ur;h the length of the corolla, slightly m u 

 Cronate,2of them exterior, a little shorter, and obtuse f'orolta white, with* 

 pink tnbe, or purple at the bottom, about 2 inches long. Style about '3 fourths el 

 an inch long ; stigmas short, subgl )bose. 

 /fao. Old fields, and borders of woods: frequent FY. July— Aug. FV. Sept, 



Obs. The specimens with 6ddle-shaped leaves have generally a broad shallow 

 si.n*is at base, with the calyx often roughish-pub« scent, and seem, indeed, to enn 

 stitute a pretty distinct variety. They are less common than the others, with us. 



~*. C. Batatas, L. Stem creeping ; leaves suhhastatc-covdate, ft. 

 nerved, partially 9-lobed ; peduncles many-Jlowered ; flowers fatct* 

 rvlate. Mx. Am. 1. p. 138. 



Potato Convolvulus. Yulgo — Sweet Pot at*. Carolina Potato. 

 Hispanice — Bat&ta de .Malaga. 



Root perennial, tuberous ; tubers oblongs terete, acute at earh end, purple, *< 

 ?;:Uotcish white. Stem 4 /o 8 /ee/ M«i'. prostrate, ra Healings angular, often dih\* 

 ted, pilose. Leaves 2 to 3 inches long, and 2 inches or more wide, subhastate ear 

 Jatt with ashallixt sinus, imperfectly 3-iolnd. a -utt, pilose ; petioles about 2 indie s 

 /o*^, pilose. 

 Bab. Gardens, and lots : frequent. Fl. Fr. 



Obg. 77it5 exotic species is frequently culti rated, here, for its fine esculent tu- 

 bers : But those produced in Ike sandy soil of New Jersey are considered so much 

 superior, in quality, that our chief supply is derived from thence. The plant is 

 propagated by cuttings of the tubers, which are planted in the beginning of May . 

 £ never produces Jloirers, with us. Lindley says this is the Potato of iShakspeare, 

 dnd contemporary writers;— the Solatium tuberosum, or Irish potato, (now so cvpi- 

 : izn,) being then scarcely known in Europe. 



6. C. prnruRr.rs, L. Twining and climbing ; leaves cordate, acumi*- 

 Bate, entire ; peduncles 2 to 3-flowered ; pedicels thickened, nodding, 

 mostly without bracts. Beck, Bol. p. 219. 



Ipomcea purpurea, Pers. Sun. 1. />. 183. Purshy.Qm. I, p. 146. Tof*r. 

 £t 1. p, 226. Kjusd. Comp. p. 108. LindL Ency. p. 138. 



Pvkfib Convolvulus. Vnlgo — Morning Glorj'. 



Hoot annual. S!e m 6 to 12 or 15 feet long when permitted to climb, fcafrr. 

 J&?arfs2to6inchcsin length, and as wide as long, roundish-cordate, acuminata 

 an petioles 2 to 5 inches long* Peduncles 1 to 2 or 3 inches Ions:, sometimes very 

 *hort and 1-flowered, with 2 or 3 subulate bracts at the base of the clavate |>edicei* 

 Gklyx deeply 5*parted, hairy ; segments lanceolate. Corolla 1 to 2 inches lon& 

 whitish, with a purple, blue, or variegated limb, sometimes all white. Style abotfl 

 }i-A( as long as the corolla ; stigma white, capitate, sobtriiubed by 3 groove*. Cay 

 sWtt globose, mucronatc, smooth, 3 celled. • 



Mob. Gardens, and lots: frequent. FA July— Sept. JFK Attgust^Octo. 



Dfc. This is an introduced plant ; bat is well known, and almost naturalUefl #> 

 afcep* «Ux gardens, and cultivated lot9» Seven or eight additional specie! ate enu;- 

 flrerateti in (he tf . States. 



