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P L A T E CCCCIIL
I P O M T E A GRANDIFLORA.
Great-ßowered Ipomoea.
C L A S S V. O R D E R ! .
PENTANDRIA MONOGYNIA. Five Chives. One Pointai.
ESSENTIAL GENERIC CHARACTER.
C a l y x quinquefidns. Corolla infandibuliformis
longa^ limbo plieato quinquefido aut
qiiinquedentato. Stigma capitatam. Capsula
trilocularis polysperma. Uster's Jiiss.
Gen. PI. 149.
Empalement five-cleft. Blossom funnelshaped
long, with a fiive-cleft or fivedentated
border. Summit headed. Capsule
three-celled, with many seeds in each
cell.
SPECIFIC CHARACTER, &C.
Ipomjsa, foliis cordatis acuminatis integerrimis,
pedunculis subunifloris.
IpoMJiA, with heart-shaped acuminated very
entire leaves, and chiefly one-flowered
peduncles,
CONVOIVULUS grandiflorus, foliis cordatis ovatis obtusiusculis integerrimis, pedunculis subbifloris,
calycibus coriaceis,. caule petiolisque pubescentibus. Linn. Supp. PL 136.—JVilld. Sp. PI. 1. 859.
REFERENCE TO THE PLATE.
1. The empalement.
2. The tube of the flower cut open, to show the structure and insertion of the chives.
3. The pointal.
4. A capsule nearly ripe, cut horizontally and lifted up to show the seeds.
This magnificent species of Ipomaea (the Convolvulus grandiflorus of authors) was obligingly commimicated
to us in bloom in the month of September, by A. B. Lambert, Esq. who thinks that its root
will only prove an annual one. If this indeed should eventually be the case, it will cause it to recede in a
material manner from the Convolvulus grandiflorus as described in the Supplementum Plantarum, and
consequently in Willdenow's Species Plantarum, which is there said to be an arborescent species : from
C. grandiflorus it should also appear to difler, in its more pointed leaves and solitary peduncles ; and
likewise in having a stigma agreeing altogether in structure with the genus Ipomaea ^ which latter circumstance
has occasioned us to separate it from Convolvulus, and transfer it to Ipomaea; because
the conformation of the stigma in those extensive genera, often (but we fear not always) affords the
most satisfactory characters for discrimination. All their species which we have examined, (and they
have been very numerous,) possibly might be united into one genus, wiüiout committing much outrage
against nature, or the natural aíBnities of her vegetable kingdom.