OF ORNAMENTAL ANNUALS. 
203 
and one, of a beautiful blush colour, and very double, which w r e saw in the Lewisham nursery, in the summer of 
1838, struck us particularly. The species is a native of the Cape of Good Hope, and was introduced in 1700, by 
Charles Dubois, Esq., one of the patrons of gardening in the time of Peter Collinson. The culture of the Jacobaia 
is exactly the same as that of other tender annuals ; viz., it must be raised on a hot-bed, and planted out in May ; 
but it is best for the possessor of a small garden, to purchase half a dozen or a dozen plants in that month from a 
nurseryman, and to plant them singly, or three together, in holes prepared for the purpose, and filled with a 
mixture of peat earth, or heath mould, and loam. When first planted they should be shaded for a day or two ; 
and covered every night with a flower-pot turned over them for a week or fortnight. If the weather be dry, 
they should be watered every day slightly with warm water ; and thus treated, they will make magnificent 
plants. 
2.—SENECIO TUSSILAGINIS, Less. THE COLTSFOOT-LEAVED RAGWORT. 
Synonymbs. —Cineraria tussilaginis, L’ Merit. ; Perieallis tussi- 
laginis, D. Don. 
Engravings. —Bot. Reg. t. 1550 ; Swt. Brit. Flow. Gard. t. 228; 
and our fig. 10, in Plate 32. 
Specific Character _Petioles auriculatedly cordate at the base, 
the rest naked. Leaves reniformly cordate, angled, toothed, clothed 
with hoary tomentum beneath. Heads disposed in panicled corymbs. 
Scales of involucrum glabrous, striated. 
Description, &c.— A handsome plant with star-like flowers, strongly resembling those of the genus Cineraria. 
A native of Tenerifle, introduced in 1831. The culture is the same as that of Senecio elegans. 
GENUS XXXIV. 
ZINNIA, Lin. THE ZINNIA. 
Lin. Syst. SYNGENESIA SUPERFLUA. 
Generic Character. —Head radiate. Flowers of the ray female, 
ligulate, those of the disk tubular, hermaphrodite. Involucrum imbri¬ 
cated, scales ovate, roundish, margined with black. Receptacle conical 
or cylindrical. Paleae oblong, complicated, involving the flowers of 
the disk. Ackenia corticate, membranous, and a little winged; 
those of the ray somewhat tetragonal; outer ones of the disk also 
somewhat tetragonal, but inner ones compressed, and furnished with 
one or two awns at the apex, bidentated, or mutic. 
Description, &c. —This genus was named by Linnaeus, in honour of Professor Zinn, the pupil and successor 
of Llaller at the University of Gottingen; and it consists of a number of very showy Mexican annuals, which 
require to be raised on a liot-bed, and not planted out in the open air till May. Zinnia is indeed one of those 
annuals which will not succeed when sown in the open air; as a certain degree of heat and moisture appears 
necessary to make the seeds vegetate. There are numerous species ; all with splendid flowers, and highly 
worthy of cultivation. 
1.—ZINNIA REVOLUTA, Cav. THE REVOLUTE-FLOWERED ZINNIA. 
Synonyme. — Z. tenuiflora, Jacq. 
Engravings. —Bot. Mug. t. 555 ; and our fig. 1, in Plate 35. 
Specific Character. —Stem erect. Leaves on short petioles, cor¬ 
date-lanceolate. Peduncles long, cylindrical. Involucral scales ad- 
pressed. Ligulae linear-oblong, usually revolute. Paleae of receptacle 
quite entire. Achenia of the disk each furnished with one awn. 
Description, &c. —This species is less showy than any of the other Zinnias; but it is curious from tlie claw¬ 
like curving of its ray florets, and their brilliant colour. It grows two or three feet high, and divides into 
several branches. It has been only found in Mexico, and was introduced about the year 1800. The seeds, which 
are common in the seed-sliops, should be sown on a liot-bed in February, and planted out about the middle of 
May ; or in cold situations, not till June. 
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