HOUSE, THE GENUS IPO MCE A 223 



Convolvulus bellus Spreng. Syst. 1: 590. 1825. 

 Ipomcea radicans Bertol.; Choisy in DC. Prodr. 9: 389. 1845. 

 Ipomaea gracillima Prain, Journ. As. Soc. Beng. 63: 111. 1894. 

 Ipomoea spirale House, Muhlenbergia 3: 40. 1907. 



Slender, glabrous or nearly so; leaf-segments linear-lanceolate, acute or acumi- 

 nate at each end, 1-3 cm. long, entire or the outer ones bifid; petioles longer than 

 the blades or shorter; peduncles filiform, as long as the petioles or longer, frequently 

 twisted and tendril-hke, used in climbing; pedicel 8-16 mm. long, stouter than the 

 peduncle; bracts minute, about 1 mm. long; sepals equal, narrowly ovate or lanceo- 

 late, 4-5 mm. long, becoming 6-7 mm. long in fruit; capsules 10 mm. high or less; 

 corolla pale violet, campanulate-fimnelform, 18-30 mm. long. 



Type locality: East Indies. 



Distribution: Tropics of the Old World. West Indies, Mexico to 

 Central America, Peru and Brazil. Introduced into Louisiana. 



Specimens EXAMINED : Porto Rico: Guanica, Sintenis 3679, 1886 (G). 

 Mexico; Yaqui River, PoZ^rzer^-^, 1864 (N.). Louisiana: near New Orleans, 

 R. S. Cocks, June 1905 (Y). 



80. Ipomoea quinquefoUa L. Sp. PI. 162. 1753.^ 



Convolvulus foliis digitalis glabris, caule laevi, Roy. Lugdb. 429. 

 Convolvulus quinquefolius glaber americanus, Plukn. Aim . 116, pi. 167. /. 6. 



Convolvulus quinquefolius L. Syst. ed. 10, 923. 1759. — Desr. in Lam. Encyc. 3: 



566. 1789. 

 Convolvulus palmatus Mill. Diet. No. 8, 1768. 

 Convolvulus hispaniolce Spreng. Syst. 1: 590. 1825. 



Convolvulus ampelopsifolius Cham. & Schlecht., in Linnaea 5: 118. 1830. 

 Pharbitis quinquefolia Raf. Fl. Tellur. 4: 81. 1838. 

 Fraxima quinquefolia Raf. 1. c. 83. 

 Latrienda palmatus Raf. 1. c. 81. 

 Ipomoea hispaniolce G. Don, Gen. Syst. 4: 1838. 



Batatas quinquefolia Choisy, Conv. Rar. 127. 1837.— In DC. Prodr. 9: 339. 1845. 

 Merremia quinquefolia HaUier f. Bot. Jahrb. 16: 552. 1893. 



Type locality: America. 



Distribution: Thickets, West Indies and Mexico to Central America, 

 Brazil and Peru. 



1 Not closely related to the African species, Ipomcea quinquefolia Hotchster, which may 

 well take the following name. 



Ipomoea hocbsteri nom. nov. 



Ipomaa quinquefolia Hochst., Hallier f. Bot. Jahrb. 18: 147, 1894. — Native of tropical 

 and southern Africa, cf. Baker & Rendle in Dyer, Fl. Trop. Afr. 4^: 177. 1905. 



