474 THE GREEN-HOUSE. [Aug. 
and continuing to the endj observing to work each tree as you 
perceive it to put forth its fresh autumn shoots^ some trees, even 
of the same species, will produce those earlier or later in the month, 
and so soon as you perceive a few of them grown to two or three 
inches in length, seize upon that time to perform the operation, as 
then the sap being in a fresh state of circulation, the bark of the 
stock will separate freely for the reception of the bud, and the 
necessary nourishment will be copiously supplied. 
Observe at this time to take the buds frori\ shoots produced in 
the early part of the present season. The proper stocks are those 
raised from the kernels of either of the species. For the methods 
of budding, and general observations on that subject, see page 442, 
&c. 
It will be very proper on budding those, or any other kinds of 
plants in pots, to place them in the shade for three or four weeks, 
after the operation is performed; or at least to turn the budded 
side of each plant to the north, in order to avoid the drying influence 
of the sun. 
Cut off" oranges, lemons, jasmins and other exotics, which were 
inarched in April or May, provided that you find them sufficiently 
united. For the method of doing this, see the article grafting by 
approach, or inarching, in page 256. 
Watering. 
Carefully attend to the watering of all the plants, giving it to 
each as often as necessary, and in proportion to its consumption; 
observing always to administer it sparingly to the succulent kinds. 
The pouring of water, occasionally, through the rose of a water- 
ing pot, over the branches of the shrubby kinds would greatly 
refresh them, and wash oft" the dust collected on the leaves; which 
would give them a clean and pleasing appearance: but this should 
be done late in the evening when the sun has lost its power for the 
day. 
Such pots as are plunged, must be turned full around in their 
seats at least once a week, to prevent the roots penetrating into 
the surrounding earth, through the holes in the bottoms of the pots. 
The Mexican Ferraria, or Tiger-flower. 
The Ferraria tigridia, of Curtis, or Tigridia pavonia, of Linn, 
and Willdenow, is of such exquisite beauty as to merit particular at- 
tention. It is of the Gynandria class, and order Triandria. Its root 
is a tunicated bulb, producing from one to four stems, from eighteen 
inches to two feet in height, composed of various joints, and 
bearing at each a plicated oblong lanceolate leaf, from a sheathing 
petiole the length of the internode, and at the summit an in- 
volucrum, apparently consisting of tv/o lanceolate, ancipital, con- 
duplicate, nearly equal valves, of which the exterior is in fact 
the common spathe or involucre, and embraces the interior with 
its contents; the interior valve, which is exactly opposed to the 
