558 ARBORETUM AND FRUTICETOM. PART III. 
against a wall in the garden of the London Horticultural Society, in 1832, and is found guite hardy. 
We anticipate the hardiness of most of the other species from their habits; viz. from their being 
generally deciduous, in the open air, in the neighbourhood of London; producing their shoots ra- 
pidiy, and so early in the season as to allow time for their ripening before the approach of frost ; 
and from their having no visible buds in the shoots, but numerous germs in the roots: a proof 
that a great part of the vitality of the plant is under ground, and, consequently, comparatively safe 
from the influence of the weather. 
Genus III. 
a lal 
DUVAU'A Kth. Tue Duvaua. Lin. Syst. Polygamia Monee‘cia. 
Fdentification. Kth. Gen. Tereb., p. 8.; Dec. Prod., 2. p.74.; Don’s Mill, 2. p.76.; Lindley in Bot. 
Reg., t. 1568. 1573. 1580. 
Synonymes. Schinus sp. Andr.; Amyris sp. Cav. 
Derivation. Called Duvata, *‘ after M. Duvau, a French botanist, known as the editor of the 
original edition of Richard’s Analyse du Fruit ; and for some observations on Verénica.” (Lindley, 
in Bot. Reg., t. 1568.) 
Gen. Char., &c. Calyx persistent, with 4—5 segments. Corolla of 4—5 concave petals. Seres 
moneeciously polygamous, Stamens 8—10, inserted under a pitcher-shaped calycine disk, which 
has as many sinuses and as many teeth as there are stamens: these are opposite the sinuses, and 
half of them opposite the petals, and half of them alternate with them. Amnfhers in the fruit- 
bearing flowers barren. Ovary conical, including one ovule, barren in some flowers. Styles 3—4. 
' Stigmas capitate. Fruit a glcbose drupe, with a leathery nut, whose seed is pendulous, and has flat 
cotyledons, and a long radicle.—Chilian trees and shrubs, becoming spiny as they adyance in growth; 
their leaves simple, and their flowers disposed in axillary racemes, many in a raceme. (Dec. Prod., 
ii. p. 74, and Lindley, in Bot. Reg., t. 1568. 1573. 1580.) ‘There are four species in cultivation, 
which are all very handsome evergreen bushes, with bright shining foliage ; the leaves rather small, 
oblong, and toothed; with numerous small flowers of a greenish yellow, and small dry berries. 
Properties and Uses. The foliage emits, when bruised, a strong but not 
unpleasant odour of the nature of turpentine; and it is probable that this 
odour pervades all parts of the plants, especially those in which the sap is 
most abundant. A pretty phenomenon is exhibited by the leaves of D. 
ovata, and, doubtless, by those of every species of Duvatea and of Schinus, 
when thrown upon water, both in a whole state and when broken into pieces. 
The leaves, or parts of leaves, “after lying a short time, will be found to 
start and jump as if they were alive, while at the instant of each start a jet 
of oily matter is discharged into the water. This circumstance appears to be 
Swing to some peculiar irritability of the parenchyma of the leaves, which, 
when acted upon by water, causes the turpentine sacs, that abound in them, 
to empty themselves with violence; and the movements of the leaves may 
be ascribed to the recoil produced by the discharge. Thus we have in every 
leaf a sort of vegetable battery, which will keep up its fire until the stock of 
ammunition is expended.” (Bot. Reg.) The movements of the leaves upon 
the water have been compared to a fleet of ships employed in manceuyring, 
or to persons engaged in dancing. (Gard. Mag., vol. ix. p. 377.) Dr. 
Gillies states that the Pehuenco Indians prepare by fermentation an 
intoxicating liquor from the fruit of D. latifolia, or a nearly allied species. 
(Bot. Reg.) 
Propagation and Culture. Seeds have been produced plentifully in the 
London Horticultural Society’s garden by D. depéndens, trained to a south 
wall; and seeds of D. latifolia are often imported from Chile. Plants of 
this genus may also be multiplied by cuttings of the ripe wood struck in 
sand, under a bell-glass, in a gentle heat. The species “will not bear the 
climate of London without protection from frost; but, if trained to a wall, 
and sheltered by a roof of thatch in winter, they succeed perfectly : in short, 
they are about as hardy as myrtles.”” (Bot. Reg.) D. ovata, and, it is pro- 
bable, all the species, “will grow in any soil or situation which is dry in 
summer, and well drained in winter; and would probably succeed in the 
crevices of rocks in Devonshire or Cornwall.” (Bot. Reg.) D. depéndens, D. 
ovata, and D. latifolia have flowered in the London Horticultural Society’s 
Garden, the two former in July, and plentifully; the last in June and July, 
but it seems by the figure in Bot. Reg., much less abundantly than the other 
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