Vol. III.] 



MORNING-GLORY FAMILY. 



Ovary 2-celled (rarely 4-celled); stigma entire or 2-lobed. 

 Leaves cordate: stems trailing or twining. 



Perennial from an enormous root; corolla 2' -3' long. 

 Annual; roots fibrous; corolla 4." -6" long, white. 

 Annual; corolla i'-i l A' long, pink or purple. 

 Leaves linear; stems ascending or erect. 

 Ovary 3-celled; stigmas 3; leaves cordate. 

 Leaves entire; corolla d-2%' long. 

 Leaves deeply 3-lobed, corolla i'-i%' long. 



I. Ipomoea pandurata (L,.) Meyer 



Convolvulus panduratus L. Sp. PI. 153. 1753- 

 I. pandurata Meyer, Prim. Fl. Esseq. 100. 1818. 



Perennial from an enormous fleshy root, gla- 

 brous or puberulent; stems trailing or feebly 

 climbing, 2-i2 long. Leaves broadly ovate, cor- 

 date, acuminate at the apex, 2 / -6 / long, slender- 

 petioled, entire, sometimes contracted in the mid- 

 dle, or some of the later ones rarely angulate-den- 

 tate or 3-lobed; peduncles 1-5-flowered, much 

 elongated in fruit; sepals oblong, obtuse or acut- 

 ish, 6 // -8 // long, glabrous; corolla funnelform, 

 white, or with pinkish purple stripes in the throat, 

 2 / ~2, / long, the limb 5-lobed; ovary 2-celled; cap- 

 sule ovoid, 2-valved, 2-4-seeded, the seeds densely 

 woolly on the margins and pubescent on the sides. 



In dry soil, in fields or on hills, Ontario to Connec- 

 ticut and Florida, Michigan, Kansas and Texas. Oc- 

 curs rarely with double flowers. Called also Man-of- 

 the-Earth and Mecha-Meck (Indian). May-Sept. 



23 



1. /. pandurata. 



2. /. lacunosa. 



3. /. Carolina. 



4. /. leptophylla. 



5. /. purpurea. 



6. /. hederacea. 



Wild Potato Vine. (Fig. 2945.) 



2. Ipomoea lacunosa I,. 



Small-flowered White Morning-glory. (Fig. 2946.) 



Ipomoea lacunosa L. Sp. PI. 161. 1753- 



Annual, pubescent or hirsute, rarely glabrous; 

 stem twining, 2-io long. Leaves slender- 

 petioled, broadly ovate, cordate, acute or acum- 

 inate at the apex, entire, angled or 3-lobed, 2 / ~4 / 

 long, the lobes acute; peduncles 1-3-flowered, 

 shorter than the leaves; pedicels slender; sepals 

 oblong or lanceolate, acute or acuminate, pu- 

 bescent or ciliate, about 5" long; corolla fun- 

 nelform, 6 // -io // long, white, or the limb pur- 

 ple; ovary 2-celled; stigma capitate; capsule 

 globose, 2-valved, shorter than or about equal- 

 ling the sepals. 



In moist soil, Pennsylvania to South Carolina, 

 west to Illinois, Missouri and Texas. July-Sept. 



3. Ipomoea Carolina (L,.) Pursh. Small- 

 flowered Pink Morning-glory. (Fig. 2947.) 



Convolvulus Carolinus L. Sp. PI. 154. 1753- 

 Ipomoea trichocarpa Ell. Bot. S. C. & Ga. 1: 258. 1817. 

 Ipomoea commutata R. & S. Syst. 4: 228. 1819. 

 Ipomoea Carolina Pursh, Fl. Am. Sept. 145. 1814. 



Similar in habit to the preceding species, but the 

 leaves usually more lobed; peduncles often longer 

 than the leaves, 1-3-flowered; sepals lanceolate or 

 oblong-lanceolate, acuminate, pubescent or ciliate; 

 corolla i / -i^ / long, pink or purple; capsule gla- 

 brous or pubescent. 



Kansas (according to Holzinger) to Texas, east to 

 South Carolina and Florida. 



