CONVOLVULACEAE. 



[Vol. III. 



4. Ipomoea leptophylla Torr. Bush 

 Morniug-glorj'. (Fig. 2948.) 



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



Perennial from an enormous root, which some- 

 times weighs 25 lbs., glabrous throughout; stems 

 erect, asccndiug or reclining, rather stout, 2°-4° 

 long, much branched. Leaves narrowly linear, 

 entire, acute, z'-^' long, i"-3" wide; petioles 

 very short; peduncles stout, nearly erect, usually 

 shorter than the leaves, 1-4-nowcred; pedicels 

 shorter than the peduncles; sepals broadly ovate, 

 obtuse, 3'''-4" long, or the outer shorter; corolla 

 funnelform, purple or pink, about 3' long, the limb 

 scarcely lobed; capsule ovoid, acute, S"-I2" long, 

 2-celled, much longer than the sepals; seeds pubes- 

 cent. 



In dry soil, Nebraska and Wyoming, south to Texas 

 and New Jlexico. May-July. 



5. Ipomoea purpurea (L. ) Roth. 

 Morning-glory. (.Fig. 2949.) 



Convolviiltis purpureas L. Sp. PI. Ed. 2, 219. 1762. 

 Ipomoea purpurea Roth, Bot. Abh. 27. 17S7. 



Annual, pubescent; stem retrorsely hairy, 

 twining or trailing, 4°-io° long. Leaves broadly 

 ovate, deeply cordate, acute or acumiuate, 2'- 

 4' wide, slender-petioled; peduncles slender, 

 1-5-flowcced, often longer than the petioles; se- 

 pals lanceolate or oblong, acute, pubescent or 

 hirsute near the base, 6"-S" long; corolla fun- 

 nelform, blue, purple, pink, variegated or white, 

 2'~2yi' long; ovary 3-celled (rarely 2-celled); 

 stigmas 3 (rarely 2); capsule depressed-globose, 

 about 5" in diameter, shorter than the sepals. 



In waste places, commonly escaped from gardens, 

 Nova Scotia to Florida, west to Ontario. Nebraska 

 aud Texas. There is a double-flowered form in 

 cultivation. Adventive or naturalized from tropical 

 America. July-Oct. 



6. Ipomoea hederacea Jacq. 



Ivy- leaved Morning-glory. (Fig. 2950.) 



Ipomoea hederacea Jacq. Icon. Rar. pi. j6. 1781. 



Annual, pubescent; stem twining or climbing to 



a height of 2°-5°, slender, retrorsely hairy. 



Leaves ovate-orbicular in outline, long-pctioled, 



deeply 3-lobed, cordate at the base, 2'-^' long, the 



lobes ovate, acuminate, entire, or the lateral ones 



sometimes rcpand or dentate; peduncles 1-3- 



flowercd, much shorter than the petioles; flowers 



opening in early morning, soon closing; sepals 



lanceolate with long linear often recurved tips, 



densely hirsute below, sparingly so above, S"-I2" 



long; corolla funnelform, the tube usually nearly 



white, the limb light blue or purple, I'-i^i' long; 



ovary 3-celled; stigmas 3; capsule depre.ssed-glo- 



bose, 3-valved, about as long as the lanceolate 



portion of the sepals. 



In fields and wa.ste places, Long Island to Florida, 

 west to Pennsylvania, Nebraska and Mexico. Natu- 

 ralized or adventive from tropical .\merica. July-Oct. 



