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TpoMRA RUBRO-C/AERULEA. . REDDISH-BLUE 
IpoMAA. 
BS so Oo On ee 
Class and Order. 
Pentanpria Monoeynia. 
( Nat. Ord.—ConvoLvutacez. ) 
Generic Character. 
Cal. 5-partitus, nudus. Corolla campanulata v. infundi- 
buliformis, 5-plicata. _Ovarium 2—3-loculare, loculis dis- 
permis. Stylusindivisus. Stigma capitatum, 2—3-lobum. 
Capsula 2—3-locularis.—Herbe volubiles, quandoque erecte. 
Folia indivisa ». lobata, nunc pinnatifida. Semina in qui- 
busdam comosa. Br. 
Specific Character. 
Ipomaa rubro-cerulea ; glabra, foliis longe petiolatis pro- 
funde cordatis brevi-acuminatis, pedunculis 3—4-floris 
incrassatis subracemosis, calycis glabri laciniis (parvis) 
erectis appressis lineari-subulatis albo-marginatis, co- 
rolla ampla infundibuliformi, limbo 5-angulato angulis 
mucronatis, stigmate bilobo. 
Of the Genus Ipomza, as distinguished from Convot- — 
vutus, no less than one hundred and sixty-five species are 
described in Roemer and Scuuures. The species which 
compose it are chiefly inhabitants of the tropics, and re- 
markable for the beauty of their flowers, which, thot 
they be individually short-lived, are succeeded so rapidly by 
others that there are few more showy ornaments of the 
forests in warm countries, or of the stoves in our own ; pro- 
vided there be space enough devoted to the great extent of 
their stems and branches. They are rendered valuable too, 
by the peculiar and well-known properties of some of them. 
One species, I. Jalapa, yields the Jalap of the shops, one 
of the most useful of medicines; whilst another, the 1. Bata- 
tas, or Sweet Potato, is as important an article of food Be 
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