308 CONVOLVULUS FAMILY. 



long ; pod with 4 one-seeded cells. Origin unknown, but likely derived 

 from some Tropical American species. Flowers seldom appear. 2/ (Les- 

 sons, Fig. 86.) 



*+ * Stems twining or with a distinct twining tendency. 



= Corolla with a large spreading limb. 

 || Flower, or at least the greater part of it, white. 



I. Iacun6sa, Linn. Low grounds, Penn. to HI. and S.; twining, nearly 

 smooth, with heart-shaped, nearly entire leaves, short 1-3-flowered 

 peduncles, small white (sometimes purple-bordered) 5-lobed corolla 

 about ' long and twice the length of the pointed ciliate sepals, and 

 slightly hairy pod. 



I. sinuata, Ort. Stem (somewhat woody at the base) and petioles 

 hairy, but the leaves nearly or wholly glabrous and 7-parted, the divi- 

 sions lanceolate or narrower and sinuately cut ; calyx as long as the tube 

 of the white purple-eyed corolla. Ga., S. 11 



I. pandurata, Meyer. WILD POTATO VINE or MAN-OF-THE-EARTH. 

 Sandy or gravelly soil, Can., S., often a bad weed; trailing or twining, 

 stout, smooth, with heart-shaped and sometimes fiddle-shaped or halberd- 

 3-lobed leaves, 1-5-flowered peduncles, small bracts, and open funnel- 

 form white corolla with deep purple eye, 2'-3' long ; root very large and 

 deep, weighing 10-20 Ibs. 11 



|| || Flower red, blue, or purple throughout (rarely white in the first). 

 o Leaves broad and cordate, either lobed or entire. 



I. Jalapa, Pursh. Light soil, along the coast S. Car., S. ; creeping or 

 twining, with heart-shaped or triangular, sometimes lobed leaves, downy 

 beneath ; flowers downy ; corolla purplish-white with purple eye, 3'-4' 

 long, opening at night ; pod partly 4-celled, with silky seeds ; root ex- 

 tremely large and fleshy, often weighing 40-50 Ibs. 11 



I. commutata, Roein. & Sch. Rather hairy, twining ; with thin, 

 heart-shaped, and sometimes angled or 3-5-lobed leaves, 4-angled 1-5- 

 flowered peduncles about the length of the slender petioles ; purple corolla 

 l'-2' long, and 4-5 times the length of the pointed ciliate sepals; pod 

 hairy. S. Car., S. (J) 



/. Lean', Paxt. Cult, from S. Amer.; tender, slightly hairy, with heart- 

 shaped and generally 3-lobed leaves, many Morning-glory-like flowers 

 crowded on the summit of the peduncle, and deep violet-blue corolla 3' 

 long, and border 3' wide ; stigma capitate. 11 



/. rdbro-casrdlea, Hook. Smooth, greenhouse generally evergreen 

 climber, with long-petioled, pale green, deeply cordate, acuminate leaves 

 and 3-4-flowered peduncles; flowers large and handsome, rich blue, with 

 a 5-angled limb ; stigma 2-lobed. Mex. 11 



/. sefosa, Ker. Stems, petioles and ex-flowered peduncles strongly 

 setose or hispid ; leaves deeply cordate and round-ovate, with 3 large lobes 

 and round sinuses ; flowers of medium size, red or purple-red, the tube 

 cylindrical ; stigma capitate. Greenhouses ; from Brazil. 11 

 o o Leaves narrow and sagittate. 



I. sagittata, Cav. Salt marshes, from N. Car. , S. ; smooth, with stems 

 twining 2-3 high, or trailing, narrow lanceolate or linear long-sagittate 

 leaves, 1-3-flowered club-shaped peduncles, and the bright purple funnel- 

 form corolla 2'-3' long. 11 



= = Corolla with a swollen tube, but no spreading limb. 



I. verslcolor, Meissn. (M*NA LOB\TA). House plant from Mexico, with 

 broad and cordate 3-lobed leaves, and scirpoid racemes of small flowers, 

 which are reddish at first, but aoon change to orange and yellow ; stigma 

 capitate. 



