218 ANNALS NEW YORK ACADEMY OF SCIENCES 



A woody twiner, several m. high; leaflets 5 or 7, obovate or oblanceolate, acumi- 

 nate at the base, the apex abruptly acuminate, subchartaceous; peduncles 4-12 cm. 

 long; pedicels 15-25 mm. long; sepals rubescent, 10-12 mm. long; corolla light 

 purple or rose, 5-6 cm. long, narrowly funnelform, the 5-lobed limb about 4 cm. 

 broad; stamens exserted, 30-40 mm. long. 



Type locality: Porto Rico. 



Distribution : Porto Rico, Virgin Islands, Guadeloupe and Martinique. 

 Common in cultivation. 



Illustrations: Bot. Mag. pi. 3315. Paxt. Bot. Mag. 3: pi. 50. 

 Knowl. & Westc. Fl. Cab. 1 : pi. 29. Maund. Bot. 1 : pi. 31. 



Specimens examined: Martinique; Duss 1882 & 8086, 1895 (Y). 



71. Ipomoea rubella House, Bot. Gaz. 43: 414. 1907. 



Ipomoea pulchella W. Hook, in Bot. Mag. 73: pi. 4305. 1847. Not /. pulchella 



Roth, 1821. 

 Ipomoea macrorrhiza Griseb. Fl. Br. W. Ind. 471. 1861. — Mast, in Gard. Chron. 



New Ser. 23: 566. 1885. Not /. macrorrhiza R. & S. 1819. 

 Ipom^a grisebachii Urb. Sym. Ant. 3: 353. 1903. Not /. grisebaehii Prain, 1894. 



Leaflets 5, or rarely 3, stalked, obovate or obovate-lanceolate, 6-12 cm. long, 

 tapering to the base, the apex short-acuminate, subcoriaceous; peduncles many- 

 flowered; sepals green, tinged with red on the margins and apex, oval or ovate, the 

 inner obovate, 9-11 mm. long, obtuse; coroUa pale rose-colored, 6-6.5 cm. long; 

 capsules 10-12 mm. long. 



Type locality: Manchester, Jamaica. 

 Distribution: Forests of Jamaica. 



Specimen exajmined: Jamaica, Marsh (G). Harris 8651, 8727, 1904 

 (Y); Britton536, 1906 (Y); Underwood Sm, 1906 (Y).. 



72. Ipomoea plumieriana House, Bot. Gaz. 43: 413. 1907. 



Convolvulus coccineus heptaphyllus, radice crassissima, Plimi. Cat. 1. 1703 — Plmn. 



Am. 79. (excl. syn. Sloan. Browne and Pluk.) 

 Convolvulus macrorrhizos L. Syst. ed. 10, 923. 1759.— Sp, PI. ed. 2, 223. 1762. 

 Ipomoea macrorhizos Roem. & Schult. Syst. 4: 311. 1819. — Choisy in DC. Prodr. 



9:388. 1845.— Urb. Sym. Ant. 3: 352. 1902. Not I. macrorrhiza Micks.. 



1803. 

 Batatas macrorrhiza G. Don, Gen. Syst. 4: 261. 1838. ^ 



Leaflets 7- (rarely 5-, 6- or 8-) stalked, elUptical-oblong or lanceolate, 5-10 cm. 

 long, acuminate at the base, apex abruptly acuminate, membranaceous or charta- 

 ceous; peduncles 1-6 cm. long, several flowered, sepals suborbicular, the inner 

 longest, 9-10 mm. long; corolla scarlet or purplish, 5-6 cm. long, the tube dilated- 

 campanulate and slightly contracted above; capsules twice as long as the caljTC. 



