Ordbb 93.— CONVOLVULAOB^. 571 



a OvAryS-celled. Stigma capltato, granulate, not lobed Pn^r.BiTis. 3 



a Ovary 4-celled. — Stamens included. Corollas, large '.Batatas. 2 



— Stations Gxsortod. Corollas rather small ...Quamoclit. 1 



1. QUA'fflOCLIT, Tourn. CypRKSs-viNE. Sepals 5, mostly mucron- 

 ate ; corolla tubular-cylindric, with a salver-form border ; stamens ex- 

 serted ; style 1, stigma capitate, 2-lobod ; ovary 4-celled, cells 1-seeded. 

 — Twining herbs, mostly American. (Fig. 303.) 



1 Q. vulgaris Choisy. Cypeess-tine. Lvs. pinnaiifid to the midvein, segments 

 linear, parallel, acute ; ped. 1-flo wered ; sep. ovate-lanceolate. — (D An exceed- 

 ingly delicate vine, Penn. (Baton) and S. States generally cultivated. Stems 

 glabrous, very slender, twining and climbing to the height of 5 — 10£ Fls. much 

 smaller than those of the common morning glory, scarlet, varying to crimson and 

 rose-color. Trained upon twine it forms an exquisite awning. July, Aug. -f § 

 E. Ind. 



2 Q. cocciuea Moench. Lvs. cordate, acuminate, entire or angular at base ; pod. 

 elongated, about 5-flowered ; cal. awned. — J) S. States, rare in the "Western, 

 along nvers, frequent in gardens. Fls. very delicate, 1' long, limb spreading 9", 

 light scarlet, nearly entire. Jn. — Aug. (Ipomsea L.) 



2. BATATAS, Eumph. Sweet Potato. (The original Indian name 

 of the common potato, transferred.) Calyx of 5 sepals ; corolla cam- 

 panulate, with a spreading limb; stamens 5, included; style simple; 

 stigma capitate, 2-lobed ; capsule 4-celled, 4-valved, with 4 erect seeds. 

 — -Herbs, or shrubby, chiefly American. Juice milky. 



I'B. littoraliS Chois. Creeping, sending out runners; lvs. smooth, petiolate, 

 thick, sinnate, with 3 to 5 rounded lobes, or somewhat panduriform, emarginate, 

 cordate; ped. 1-flowered, as long as the leaf; sepals ovate, abruptly acuminate ; 

 seeds tomentous. — H Sand hills near the coast, S. Car. to Fla. Fls. large. Stam. 

 much shorter than the tube of the yellowish white corolla. Sty. with 2 capitate 

 stigmas. Aug. — Oct. (Convolvulus L. C. obtusilobus Mx.) 



2 B. maororhiza. Creeping or twining ; lvs. cordate, entire, sinuate or lobed, 

 lommtous-puhescent beneath ; ped. 1 to ^-flowered, longer than the petioles but 

 shorter than the leanies; sep. ovate, obtuse; seeds villous with long hairs. — U 

 Sandy soil, islands of S. Car. and Ga. (Elliott). Et. fusiform, attaining a large 

 size. Sts. several feet in length, pubescent. Ped. 2 to 3' long. Cor. large, 

 purplish, white. Stam. barely included. Stig. 2, capitate. Jn. — Oct. (B. 

 Jaiapa (7) Cliois. Convolvulus Ell.) 



3 B. edulis Chois. Sweet Potato. Creeping, or twining ; lvs. variously 3 

 to 5-palmaie or pedaie-lohed or angled, lobes acute, ia.se cordate with a broad sinus, 

 6-veined, sunoothish; ped. 3 to 5-flowered, as long or longer than tlie petioles. — If 

 ■Root bearing oblong, terete tubers which taper to both ends. Sts. 4 to 8f long. 

 ' Lvs. 2 to 5' long, on petioles 2 to 6'. Els. showy, rose-purple. % E. India. (Con- 

 volvulus Batatas L.) — Extensively cultivated West and South for its rich, nu- 

 tritious tubers. (Eig. 56.) 



3. PHAR'BITIS, Chois. Morning Glort. (German /a?-6e, color ; 

 in reference to the brilliant flowers.) Calyx 5-sepaled ; corolla cam- 

 panulate or inclining to funnel-form; style single; stigma capitate, 

 granulate ; ovary 3 (rarely 4)-celled, cells 2-seeded. — ^Beautiful climb- 

 ing and twining herbs, everywhere cultivated for ornament. 



1 P. purpCirea. St. climbing and twining, retrorsely pilous; lvs. cordate, entire; 

 £1. nodding; ped. 2 — 5-flowered; pedicels thick; cal. hispid. — (Din fields, Mid. 

 and_"W. States. Stems climbing many feet. Leaves roundish, heart-shaped. 

 Elowers large, beautiful, generally of a dark purple, sometimes blue, flesh-colored, 

 striped, Ac. A well known and favorite climber and free flower, of the easiest 

 culture. Jn. § f (Pig. 49, 338.) (P. hispida Chois, Convolvulus L.) 



