572 Obder 93.— COirVOIiVULACE^. 



2 P. Nil Chois. Moknino Globt. Las. cordate, 3-loted; fla. half 5-cleft; ped. 

 shorter than the petiole^ 1 — 3-flo-wered ; sep. ovate, long-pomted, densely hairy 

 below. — A very heautiful twining plant, found wild, Pent» to Flor., in fields, bat 

 best known as a garden annual. Stem and leaves somewhat hairy. Flowers 

 large, the tube white and the border of a clear blue color (whence its specific 

 name, Anil or Nil, indigo), drying light scarlet. It ia of the easiest culture, and 

 raised from the seed. July — Sept. f 



4. IPOM(E^A, L. False Bind-weed. (Gr. 'itp, irrog, bind-weed (or 

 perhaps ti/iof, ivy), and bfioiog, similar.) Calyx 5-sepaled ; CQToUa cam- 

 panulate ;■ stam. included; style 1; stigma capitate, usually 2-lobed; 

 ovary and capsule 2-celled, cells 2-seeded. — A large genus of herbs, 

 shrubs or trees, chiefly tropical. One species are herbs, creeping or 

 climbing. 



* Flowers capitate, involucrate, small, blue. Sepals hairy No. 1 



* Flowers separate. — Sepals bristly ciliate, capsules somewhat hairy Nos. 2, 8 



— Sepals glabrous. — Flowers.purple. Maritime Nos. 4, 5 



— Flowers white, rarely yellow : Nos. 6 — 8 



1 I. tamnifolia L. St. terete, hirsute; Ivs. hirsute ovate, cordate, acuminate; 

 ped. as long as the leaves ; fls. {small, blue) in involucrate heads, bracts unequal, 

 lanceolate or linear, acute ; sep. very hairy, linear-subulate. — QD Middle Ga. to 

 La. Vine trailing and climbing, clothed all over with tawny hairs. Lvs. large,- 

 on long petioles. Ped. 2 to 3' long. Fls. crowded, 9" long, blue. 



2 I. commutata R. & S. St. slightly pubescent; lvs. cordate, entire or ^-Idbed, 

 smoothish, hairy at the insertion of the long petiole, auricles obtuse below, middle 

 lobe dilated at base or ovate ; ped. about equaling the petioles, 2 to 5-Jhwersd; 

 sepals lanceolate, acuminate, eiliate-hirsute, 4 times shorter tham, the corolla; capB! ' 

 hairy. — J) In dry fields, S. Car. to La. Sts. twining and climbing. Petioles 1 to 

 2' long. Fls. usually 3 on each peduncle, purple, varying to pink, beU-s.haped, 

 18" long. Jl. — Oct. (L triohooarpa Ell .) 



3 I. laoun6sa.L. Minutely pubescent; st. twining; lvs. cordate, acuminate, an- 

 gular-lobed or entire, on long petioles; ped. 1 to 3-flowered, half as long as the 

 petioles; sep. bristly ciUate, oblong-lauoeolate, acute, half as long as the corolla; 

 caps, pilous. — (D Penn., Md. to Fla., La. and 111. A small, prostrate species, 2 to 

 6f long, in dry fields and hills. Lvs. 2' by 1|-', deeply cordate, often deeply 3- 

 lobed, petioles 1 to 3' long. Fls. about 1' long, white with a purplish rim. Aug., 

 Sept. (C. mieranthus Eiddell.) 



4 , 1. Pes-cSpras Sw. St. prostrate, slightly scabrous ; lvs. roundish, emarginaie 

 or 2-lobed, rather thick, petiolate, strongly vemed ; ped. 1 to 5 (generally Z)-flowered, 

 as long as the petioles ; sep. ovate-lanceolate ; cor. ample, with a short tube. — 

 Coast and Isl. of Ga. Lvs. 2 to 3' long and wide, as long as the petioles and 

 peduncles. Pedicels braoted, 1 to 2' long. Cor. near 3' long, purpla Jn. — 

 Sept. 



5 I. sagittata Desf. Glabrous ; lvs. cordate-sagittate, veiny, gradually acute and 

 mucronate, auricles acute or rounded, petioles elongated; ped. as long as the 

 petiole, but much shorter than the solitary, ample flower; sep. ovate, obtuse^ 

 short. — U Borders of salt marshes, S. Car., Ga^ to La. St. long and twining. Lvs. 

 2 to 3' long, the sides nearly straight. Ped. very thick. Cor. 3' long, the bor- 

 der spreading 2' or more, purple. Jn. — Aug. 



6 I. sinuata Ort. St. hirsute; lvs. glabrous, or the veins beneath hirsute, ptti' 

 mateh/ 1-cleft, the segm. pirmatifid, with obtuse teeth; ped. 1 to 2-flowered, as 

 long as the petioles ; sepals lance-ovate, nearly as long as the tube of the cam- 

 panulate corolla. — if Ga., Fla., in calcareous soils (Michaux). Lvs. varying to 

 sinuate-lobed. A twining vine. Fls. white, 1' long. (I. dissecta Ph.) 



7 I. ciliolata Pers. St. smooth; lvs. cordate, acwminate, smooth, the margin 

 sparingly ciliate, petioles elongated; ped.' l-flowered, 2-bracted above, as long as 

 the petioles ; sep. broadly ovate, obtuse or mucronulate ; cor. tubular, oompanulate. 

 — % N. Car. and Tenn. Vine twining and climbing, with lv9. elegantly heart- 

 shaped, and large yellow corollas. Sep. large 1 to 9'° long. (I. ciliosa Ph.) 



