calyx. Stamens of very unequal lengthy one of them about as long 
as the tube of the corolla, the others shorter, adherent to the tube till 
it is dilated on leaving the calyx; filaments subulate, covered with 
lilac-coloured spreading hairs at the lower part of their free portion, 
everywhere else both above and below this point colourless and gla¬ 
brous; anthers erect, white, elliptical, notched below', emarginate at the 
apex, opening along their sides; pollen wdiite, granules spherical. 
Pistil rather more than half the length of the tube of the corolla, 
longer than the shortest and shorter than the longest stamens; stigma 
white, capitate, obscurely 2-lobed, of many short congested segments ; 
style very slightly compressed, greenish below ; germen greenish, coni¬ 
cal, seated on a yellow glabrous disk. 
Popular and Geographical Notice. This species, native of 
the banks of the River Plate, exists in several varieties, difiering in 
the size of the flower, the colour of the herbage, some being glaucous 
and others green, diff’usion of the warts, and the number of flowers 
w'hich are developed on the peduncle. In several of these circum¬ 
stances the specimen here figured is nearly intermediate between those 
in the Botanical Magazine and Botanical Register. The extensive 
genus Ipomcea is widely diffused through the warmer parts of the globe, 
and furnishes some of the finest climbers which ornament tropical for¬ 
ests. It exists in every quarter of the globe except Europe, where it 
has not been found, though there are there several species of its very 
near ally. Convolvulus. 
Introduction; Where grown; Culture. The present species 
was first raised by the Hon. and Rev. William Herbert at Spofforth, 
from seeds communicated by Mr. Cooper, and subsequently in several 
establishments from seeds collected by Mr. Tweedie. The plant de¬ 
scribed flowers freely in the Garden of the Caledonian Horticultural 
Society, running along the rafters of the stove in which it is placed. It 
does not produce fruit, but Mr. James M’ Nab thinks he will probably 
succeed in propagating it, as with other species and similarly rooted 
plants, by inserting a bud from the stem into a portion of the root re¬ 
moved and treated as are ordinary cuttings. 
Derivation of the Name. 
Ipomcea from a climber, and ojxoioQ similar, from its resemblance to Convol¬ 
vulus. Platensis, from the river Plate. 
Synonymes, 
Herbert in Bot. Reg. 333. Hooker in Bot. Mag. 3685. 
Grah. 
Ipomcea Platensis, 
