OF ORNAMENTAL ANNUALS. 
145 
N. INFLATA, Ruiz el Pavon. 
Flowers white, with blue anthers; calyx inflated. Stems purple and angular. Plant prostrate. Leaves 
downy and sinuated. A native of the sandy hills near Cumana. 
N. REVOLUTA, Ruiz et Pavon. 
Flowers large and of a bluish-violet, peduncles very short. Stems white and angular. Plant procumbent. 
A native of Peru in sandy places. 
CHAPTER XXVII. 
CONVOLVULACEAE. 
Essential Character. —Calyx of 5 sepals, rarely 5-toothed, per¬ 
sistent. Corolla monopetalous. Limb of five plaits or five lobes> 
with a twisted aestivation. Stamens 5, epipetalous. Hypogynous disk 
annular, surrounding the ovarium. Capsule dehiscing valvately, rarely 
transversely. Seeds rounded on one side, and flattened on the other. 
Albumen mucilaginous. Cotyledons corrugated.—Usually twining 
herbs. Leaves alternate, entire or lobed. Peduncles axillary or 
terminal; one or many flowered.—(G. Don.) 
Description, &c.— The Convolvulaceas are all twining plants, most of which are herbaceous, and many of 
these annuals. They have all large showy flowers, and are of very easy culture. According to modern botanists, 
there are thirty-five in the order Convolvulaceas, most of which contain annuals ; but we shall confine ourselves 
to the two genera Convolvulus and Ipomoea, (both of which were instituted by Linnaeus,) as under these names 
the plants are best known, and we shall only indicate the new’ names in the synonymes. 
GENUS I. 
CONVOLVULUS, Choissy. THE CONVOLVULUS OR BINDWEED. 
Lin. Syst. PENTANDRIA MONOGYNIA. 
Generic Character.— Stamens inclosed. Stigma 2-lobed ; lobes teretely filiform. 
Description, &c.— The name of Convolvulus was given by Linnaeus to a number of climbing, showy- 
flowered plants, which since his time have been divided into five or six different genera; but to prevent 
confusion, we shall describe these plants under their old name of Convolvulus, which alludes to the folding of the 
flowers in the bud. 
1.—CONVOLVULUS TRICOLOR, Lin. THE THREE-COLOURED CONVOLVULUS. 
Engravings —Bot. Mag. t. 27, and our fig. 2, in Plate 26. 
Synonyme. —Convolvulus minor, Hort. 
Specific Character. —Stem declinate, terete, beset with small, 
soft, white hairs. Leaves ovate-lanceolate, spatulate, hairy, ailiated. 
Peduncles 1-flowered, bibracteate, longer than the leaves. Sepals 
ovate-lanceolate, acute. — (G. Don.) 
Description, &c.— A beautiful flower with three distinct colours, yellow, blue, and white, well known 
under the name of Convolvulus minor, or the dwarf Convolvulus, in our gardens. There are two varieties of it, 
one white, and the other striped, but they do not always come true from seed. The species is a native of Spain, 
Portugal, Sicily, and the north of Africa; and it was introduced by Parkinson before 1629 ; as he calls it the 
small blue Spanish Bindweed in his Paradisus, and says he had the seed of “ Guillaume Boel,” who brought it 
from Portugal. Some botanists suppose this species to have been originally only found in Barbary ; but whether 
introduced or indigenous, it is now a common weed both in Spain and Portugal. The flowers always folding in 
u 
