474 THE GREEN-HOUSE. [Aug. 



and continuing to the end; 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 \\i\v 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 from 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 oft' 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. Itsroot 

 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- 

 volucruro, apparently consisting of two 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 



