OP ORNAMENTAL EXOTIC PLANTS. 
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Subsect. 2. — Petals of one colour. Stems shrubby, fleshy. 
5.— PELARGONIUM ZONALE Willd. THE HORSE-SHOE PELARGONIUM. 
I Synonyme. — Geranium zonale Lin. toothed, zonate above. Peduncles many-flowered. Petals wedge- 
Engraving. — Our fig. 5, in PI. 15, . shaped. (Cr. Don.) 
Specific Character. — Leaves cordate, orbicular, obsoletely lohed, 
' Description, &c. — The Horse-shoe Pelargonium is so called in reference to a dark mark on its leaves, some- 
* what in the shape of a horse-shoe : its flowers are of a brilliant scarlet. It is a native of the Cape of Good 
Plope, whence it was introduced in 1710 ; and when kept in a greenhouse, or room, it will continue in flower from 
\ April till December. Under favourable circumstances, it will form a shrub from three to six feet high, particularly 
I if trained against a wall. Under other circumstances, it may be planted out in flower-beds, where it is highly 
ornamental, from its masses of bright scarlet flowers. The plant ripens seeds freely, and it may be propagated 
' easily by cuttings. ^ 
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] OTHER SPECIES BELONGING TO SECT. XI. 
j P. INQUINANS Ait. 
’ This species differs very little from the last in the flowers, but it is easily known by the leaves, which have no 
. black mark upon them, and are covered with a soft down. The juice from the stem, when cut, will also stain the 
fingers of a brownish colour, and turn a steel Imife black. A great many hybrids have been raised between this 
!: and the common horse-shoe, the flowers of which are of various shades of crimson and scarlet, and which bear the 
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j names of the places at which they have been raised. The Variegated-leaved Pelargonium, the leaves of which are 
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: not only white round the edge, but curved and wrinkled, is supposed to be a variety of this species ; but the 
flowers* which are small, and of a pale crimson, are very inferior in beauty. All the scarlet-flowered Pelargoniums 
were introduced nearly about the same time, viz. from 1710 to 1714, but the hybrids from them have been 
raised at different times, and fresh ones are still continuing to be raised by those gardeners who take an interest 
in such matters. 
There are several other species and varieties in this section, but they are seldom seen in British greenhouses. 
SECT. XII.— POLYACTIUM. 
) There is only one species in this division (P. multiradiatimi) . It has a tuberous root, and nearly black 
I flowers, which are produced in such abundance that each umbel has from twenty to thirty. The leaver are deeply 
I cut and hairy. The name given to this section signifies many-rayed, in allusion to the numerous flowers. 
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SECT. XIII.— PERISTERIA. 
The species contained in this division are all herbaceous trailing plants, many of which are natives of New 
Holland, and the flowers of which are generally white spotted with red. They are all greenhouse plants, but are 
now very seldom seen in collections. Peristeria is from a Greek word, signifying a dove, in allusion to the 
leaves of some of the species bearing a resemblance to those of the common Dove’s-foot Geranium. 
