HOUSE, THE GENUS IPOMCEA 



211 



Stems rooting at the nodes. 

 Leaf-blades entire or toothed. 



Leaf-blades broadly sagittate, the basal auricles blunt 



or toothed. 

 Leaf-blades not sagittate or hastate. 



Leaf-blades broadly ovate, cordate, acute. 

 Leaf-blades suborbicular, obcordate or emarginate 

 at the apex, not cordate. 

 Leaf-blades variously lobed or oblong-lanceolate, not cor- 

 date; corolla cream-colored. 

 Stems prostrate, but not rooting at the nodes. 

 Corolla white or purple only at the base. 

 Leaf-blades 3- to 9-toothed. 



Leaf-blades not toothed, entire and strongly reticu- 

 late-veined beneath. 

 Corolla blue or purple or only the tube white. 



Peduncles usually exceeding the leaves; blades triangu- 

 lar-ovate and hastate, sinuately toothed at the base, 

 pubescent. 

 Peduncles very short; leaf-blades deltoid-reniform to 

 triangular-ovate, angled or toothed, nearly or quite 

 glabrous. 



56. 



57. 



58. 



59. 



60. 



61. 



I. reptans. 

 I. asarifolia. 

 I. pes-caprce. 

 I. stol»nifera. 



I. schaffneri. 

 I. hartwegii. 



62. I. ignava. 



63. I. eximia. 



56. Ipomoea reptans (L.) Poir. Encyc. Suppl. 3 ; 460. 

 in DC. Prodr. 9: 349. 1845.' 



1813.— Choisy 



Olus-vagum, Rumph. Amb. 5: 419. pi. 155. /. /. 

 BaUel, Rheed. Mai. 11: 107. pi. 52. 

 Convolvulus reptans L. Sp. PI. 158. 1753. 

 Convulvolus repens Desr. in Lam. Encyc. 3: 547. 1789. — Vahl, SjTnb. Bot. 1: 17. 



1790.— Willd. Sp. PL 1: 874. 1798 (excl. syn. L, and Gronov.) — Roxb. 



Fl. Ind. 2: 68. 1824. Not C. repens L. 1753. 

 Convolvulus adansonii Desr. 1. c. 560. 

 Ipomcea aqiiatica Forsk. Fl. Aegypt.-Arab. 44. 1775. — Lam. Illus. 1: 467. 1791. 



— Encyc. 6: 18. 1804. 

 Ipomcea repens Roth; Roem. & Schult. Syst. 4: 244. 1819. — Roth, Nov. PI. Sp. 



110. 1821. 

 Ipomoea clappertoni R. Br. in Denh. & Clapp. Trav. Append. 240. 1826, 

 Ipomoea subdentata Miq. Fl. Ind. Bat. 2: 614. 1856. 



Fleshy and glabrous; leaf -blades ovate-lanceolate or triangular, sagittate or 

 subhastate, 3-8 cm. long, basal auricles obtuse, acute or toothed; corolla white 

 tinged with magenta below, about 4 cm. long. 



Type locality: India, 



Distribution: Wet shores, circumtropical. 



Illustrations: Naves; Blanco, Fl. Fillip, pi. 149. 



