328 CONVOLVULACE^E. (CONVOLVULUS FAMILY.) 



** *+ Stem twining: haves mostly 3-lobed. 

 = Capsule hairy: seeds naked. 



9. I. COmmutata, R. & S. Annual; stem pubescent; leaves cordate, 

 acuminate, entire, angled, or 3-lobed ; peduncles about as long as the petioles, 

 1 - 5-flowered ; corolla purple, 4-5 times as long as the ciliate sepals ; capsule 

 globose, 4-valved, shorter than the calyx. Margins of swamps, and culti- 

 vated grounds. August - Oct. Leaves 1' - !' long. Corolla 1 J' 2' long. 



10. I. trifida, Don, var. Torreyana, Gray. Perennial, smoothish ; 

 peduncles longer than the 3-lobed leaves, 3-10-flowered ; sepals glabrous; 

 capsules as long as the calyx; otherwise like the preceding. Cultivated 

 ground. Introduced. 



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

 uated, but obtuse at the apex, entire or hastate-lobed, smooth below; pedun- 

 cles 3-flowered, longer than the leaves ; corolla small, purple, twice as long 

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

 South Florida. Leaves 1'- H' long. Corolla ^' long. 



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

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

 leaves : corolla small, white, twice as long as the ciliate sepals ; capsule glo- 

 bose, slightly hairy. Low grounds. August - Oct. 



= = Capsule smooth : seeds woolly : powers large. 



13. I. pandurata, Meyer. Stem twining, or prostrate, smoothish ; leaves 

 cordate, acuminate, entire or fiddle-shaped; peduncles commonly longer than 

 the petioles, 1 - 6-flowered ; bracts minute; sepals smooth, oblong-ovate, ob- 

 tuse, mucronate, the two outer ones shorter ; corolla white, with pointed lobes, 

 the tube purple within. River banks and margins of swamps, rarely in 

 sandy pine barrens. August -Oct. ^ Root tuberous, very large. Corolla 

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



14. I. Jalapa, Pursh. Stem pubescent, stout; leaves membranaceous, 

 deltoid, cordate, plaited by the strong impressed veins, hoary-pubescent be- 

 neath ; peduncles 1 - 5-flowerecl ; sepals oblong, tomentose; corolla white 

 tinged with purple, notched at the angles, bright purple on the tube within ; 

 capsule ovate, pointed, 2-valved ; seeds very silky. Light sandy soil, Florida 

 to South Carolina, along the coast. July -Sept. ^ Root very large. 

 Leaves 3' -5' long, occasionally 3-lobed. Corolla 3' -4' long, opening at 

 night. Ovary imperfectly 4-celled. 



15. I. sagittata, Cav. Smooth and somewhat fleshy; stem slender; 

 leaves sagittate, lanceolate or linear ; the lateral lobes long, spreading, acute ; 

 peduncles 1- 3-flowered, club-shaped, shorter than the leaves, minutely 

 bracted ; sepals oval, shorter than the ovate 4-valved pointed capsule ; seeds 

 silky on the angles ; corolla bright purple. Marshes along the coast. July - 

 Sept. 11 Stem commonly 2 -3 long. Corolla 3''long. 



*-* *-<- -w- Stems twining: leaves pedately 7-parted. 



16. I. sinuata, Ort. Stem very long, woody at the base, the branches 

 inuricate, nairy ; leaves smooth, with the divisions lanceolate, sinuate-toothed ; 

 peduncles shorter than the leaves, 1 - 2-flowered ; pedicels flattened, dilated 



