CONVOLVULACE^E. (CONVOLVULUS FAMILY.) 343 



2-clefc, sprinkled with hairs on both sides ; peduncles 4-angled, about as long as 

 the filiform petioles, 1 5-flo\vered ; bracts small, subulate ; corolla purple, 4-5 

 times as long as the ovate-lanceolate acuminate ciliate sepals ; capsule globose, 

 4-valvccl, shorter than the calyx. (I. trichocarpa, Ell.) Margins of swamps, 

 and cultivated grounds, Florida to North Carolina, and westward. Aug. - Oct. 

 Leaves 1' - 1 J' long. Corolla l J' - 2' long. 



4. I. triloba, L. ? Stem slender, hairy ; leaves cordate, abruptly atten- 

 uated, but obtuse at the apex, entire or hastate-lobed, with the lateral lobes 

 rounded, smooth below, slightly hairy above ; peduncles 3-flowered, longer than 

 the leaves ; bracts subulate ; corolla small, purple, twice as long as the oblong, 

 acute, hairy sepals ; capsule globose ; seeds slightly pubescent on the angles. 

 South Florida. Leaves !'-!' long. Corolla ' long. 



5. I. lacunosa, L. Stem and leaves smoothish ; leaves cordate, obtuse or 

 acuminate, entire or 3-lobed ; peduncles 1 - 3-flowered, shorter than the leaves, 

 often shorter than the petioles; corolla small, white, twice as long as the~ovate- 

 lanceolate acuminate ciliate sepals ; capsule globose, slightly hairy. Low 

 grounds, in the middle districts of Georgia, and westward. Aug. - Oct. Ca- 

 lyx and corolla commonly longer than the preceding. 



*- -t- -i- Corolla large, funnel-shaped, the tube elongated: capsule smooth : seeds often 

 woolly : steins elongated : leaves cordate, petided, entire or 3-lobed. 



6. I. pandurata, Meyer. Stem twining, smoothish ; leaves cordate, acu- 

 minate, but scarcely acute, entire or fiddle-shaped, more or less pubescent above, 

 paler and smooth beneath ; peduncles commonly longer than the petioles, 1-6- 

 flowered ; bracts minute ; sepals smooth, oblong-ovate, obtuse, mucronate, the 

 two outer ones shorter ; corolla white, with pointed lobes, the tube purple within. 

 Var. HASTATA. Stem mostly prostrate ; leaves hastately 3-lobed, the lateral 

 lobes rounded ; peduncles mostly 1 -flowered, longer than the leaves ; inner sepals 

 acute. River-banks and margins of swamps, the var. in sandy pine barrens, 

 Florida to Mississippi, and northward. Aug. -Oct. 1J. Root tuberous, very 

 large. Corolla 3' long. Capsule globose. Seeds woolly on the angles. 



7. I. Michauxii, Sweet. Stem pubescent, stout ; leaves membranaceous, 

 deltoid, cordate but decurrent on the petiole, obtuse, plaited by the strong im- 

 pressed veins, wavy on the margins, slightly roughened above, hoary-pubescent 

 beneath ; peduncles 1 - 5-flowered ; sepals thick, oblong, obtuse, tomentose ; co- 

 rolla pubescent, white tinged with purple, notched at the angles of the limb, and 

 bright purple on the tube within ; capsule ovate, pointed, 2-valved ; seeds very 

 silky. (I. macrorhiza, Michx.) Light sandy soil, Florida to South Carolina, 

 along the coast. July - Sept. y. Root very large. Leaves 3' - 5' long, occa- 

 sionally 3-lobed. Corolla 3' -4' long, opening at night. Ovary imperfectly 

 4-celled. 



8. I. Bona-Nox, L. Smooth ; leaves membranaceous, cordate, acumi- 

 nate, entire, long-petioled ; peduncles very stout, 5 - 7-flowered, longer than the 

 leaves ; sepals ovate, obtuse ; the 2 outer ones prolonged in a long filiform ap- 

 pendage ; corolla white, almost salver-form ; the tube very long and slender ; 

 stamens and style partly exserted ; capsule ovate, pointed with the conical per 



