572 ORDER 93. CONVOLVULACE^E. 



2 P. Nil Chois. MORNING GLORY. Lvs'. cordate, 3-lobed; fls. half 5-cleft; ped. 

 shorter than the petioles, 1 3-flowered ; sep. ovate, long-pointed, densely hairy 

 below. A very beautiful twining plant, found wild', Penn. to FJor., in fields, but 

 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 is of the easiest culture, and 

 raised from the seed. July Sept. f 



4. IPOWKPA, L. FALSE BIND-WEED. (Gr. tip, t,7rog, bind-weed (or 

 perhaps tyog, ivy), and fyioiOf, similar.) Calyx 5-sepaled ; corolla cara- 

 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, 3 



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



Flowers white, rarely yellow Nos. 68 



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 G-a. 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 ; Ivs. cordate, entire or 3-lobed, 

 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-flowered; 

 sepals lanceolate, acuminate, ciliate-hirsute, 4 times shorter than the corolla ; caps, 

 hairy. (D In dry fields, S. Car. to La. Sts. twining andclimbing. Petioles 1 to 

 2' long. Fls. usually 3 on each peduncle, purple, varying to pink, bell-shaped, 

 18" long. JL Oct. (I. trichocarpa Ell.) 



3 I. lactmosa L. Minutely pubescent ; st. twining ; Ivs. cordate, acuminate, an- 

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

 petioles; sep. bristly ciliate, oblong-lanceolate, acute, half as long as the corolla; 

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

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

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

 Sept. (C. micranthus Riddell.) 



4 I. Pes-caprae Sw. St. prostrate, slightly scabrous ; Ivs. roundish, emarginate 

 or 2-lobed, rather thick, petiolate, strongly veined; ped. 1 to 5 (generally 3)-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 bracted, 1 to 2' long. Cor. near 3' long, purple. Jn. 

 Sept. 



5 I. sagittata Desf. Glabrous ; Ivs. 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. ! 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; Ivs. glabrous, or the veins beneath hirsute, pal- 

 mately 7 -cleft, the segm. pinnatifid, 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; Ivs. cordate, acuminate, smooth, ,the margin 

 sparingly ciliate*, petioles elongated ; ped. 1 -flowered, 2 -bracted above, as long as 

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

 l^ N. Car. and Tenn. Vine twining and climbing, with Ivs. elegantly heart- 

 shaped, and large yellow corollas, Sep. large 7 to 9" long. (I. ciliosa Ph.) 



