DESCRIPTIVE LIST OF NEW PLANTS. 
43 
keep off frost. It strikes freely from cuttings of young wood 
under ordinary treatment.— Bot. Beg. 2—46. 
FabacejE. — Polygamia Monoecia. 
Neptunia plena. This curious water plant, with sensitive 
leaves, has been raised from seeds recently sent from Jamaica by 
Mr. Purdie, and a specimen of it, from the collection of his 
Grace the Duke of Northumberland, at Syon, was exhibited at 
a meeting of the Horticultural Society in October last. Its long 
spongy stems throw out innumerable thread-like roots, and, float¬ 
ing in the water, speedily produce broad masses of leaves, cut up 
into myriads of irritable leaflets. It seems to be common in all 
parts of tropical America: botanists have received it from Guiana, 
Mexico, Brazil, and various West India islands. Being a native 
of the hottest parts of the tropics, gardeners who may wish to 
cultivate this plant will do well to bear in mind that the water 
in which it is planted should have at least 80° of temperature, or 
it cannot be expected to thrive. It seems to be a perennial.— 
Bot. Beg. 3—46. 
Scrophulariaceje. — Didynamia Angiospermia. 
Buddlea Bindley ana. This was one of the earliest discoveries 
of Mr. Fortune upon his arrival in Chusan. He immediately 
sent home seeds, with a particular request that the species, if 
new, might bear its present name; and in little more than three 
months after they were posted in Chusan, plants were growing 
in the garden of the Horticultural Society. Dried specimen, 
have now reached this country, and one of them is before us. It 
consists of a branch, not quite a foot and a half long, on which 
there have been growing seven spikes of flowers, from two to 
three inches long each : their colour is a deep rich violet, a little 
verging on gray, on account of the numerous short hairs with 
which they are closely covered. In cultivation this shrub has 
hitherto proved unwilling to flower: it grows very vigorously— 
running to wood, as we say—and requiring some special mode of 
management to stop its exuberant vegetation. Probably very 
poor gravelly or clayey soil and a hot dry atmosphere would suit 
it much better than the rich mould usually found in gardens. 
It is about as hardy as a fuchsia.— Bot. Beg. 4 —46. 
