44 



COXVOLVULACEAE. 



VOL. III. 



2. Ipomoea lacunosa L. Small-flowered 

 White Morning-glory. Fig. 3431. 



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 acuminate at the 

 apex, entire, angled or 3-lobed, 2'-^' long, the 

 lobes acute ; peduncles i-3-flowered, shorter than 

 the leaves ; pedicels slender ; sepals oblong or lan- 

 ceolate, acute or acuminate, pubescent or ciliate, 

 about 5" long; corolla funnelform, 6"-io" long, 

 white, or the limb purple; ovary 2-celled; stigma 

 capitate ; capsule globose, 2-valved, shorter than 

 or about equalling the sepals. 



In moist soil, Pennsylvania to South Carolina, Illi- 

 nois, Missouri, Kansas and Texas. In ballast at 

 Atlantic seaports. White star. Morning-glory. July- 

 Sept. 



3. Ipomoea trichocarpa Ell. Small-flowered 

 Pink Morning-glory. Fig. 3432. 



Convolvulus carolinus L. Sp. PI. 154. 1753. 



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



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



Ipomoea Carolina Pursh, Fl. Am. Sept. 145. 1814. Not L. 

 1753. 



Similar in habit to the preceding species, but the 

 leaves usually more lobed ; peduncles often longer 

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

 oblong-lanceolate, acuminate, pubescent or ciliate ; 

 corolla i'-ii' long, pink or purple; capsule glabrous 

 or pubescent. 



Kansas to Texas, east to South Carolina and Florida. 



4. Ipomoea leptophylla Torr. Bush Morning- 

 glory. Fig. 3433. 



Ipomoea leptophylla Torr. in Frem. Rep. 95. 1845. 



Perennial from an enormous root, which some- 

 times weighs 25 Ibs., glabrous throughout; stems 

 erect, ascending or reclining, rather stout, 2-4 

 long, much branched. Leaves narrowly linear, en- 

 tire, acute, 2'-5' long, i"-3" wide; petioles very 

 short ; peduncles stout, nearly erect', usually shorter 

 than the leaves, i-4-flowered ; pedicels shorter than 

 the peduncles ; sepals broadly ovate, obtuse, 3 "-4" 

 long, or the outer shorter ; corolla funnelform, pur- 

 ple or pink, about 3' long, the limb scarcely lobed; 

 capsule ovoid, acute, 8"-i2" long, 2-celled, much 

 longer than the sepals ; seeds pubescent. 



In dry soil, South Dakota to Nebraska, Wyoming, 

 Texas and New Mexiqo. Man-root. May-July. 



