OR A 



404 



ORC 



ORANGE. Citrus aurantium. See 



Citrus. 



ORANGERY is a green-house or 

 conservatory devoted to the cultivation 

 of the genus Citrus. The best plan for 

 the construction of such a building is 

 that erected at Knowsley Park, and 

 thus described by the gardener, Mr. J. 

 W. Jones. 



Fig. 104. 



"Measured inside, this house is four- 

 teen and a half yards long, eight broad, 

 and six high. In the centre of the 

 house are eight borders, in which the 

 oranges, &c., are planted ; these borders 

 are all marked a. The two borders 

 against the back wall are sixteen inches 

 broad, and three feet deep. The six 

 borders immediately in the centre of 

 the house are fourteen inches broad, 



" Two stoves immediately connected 

 with each end of the orangery contain 

 the collection of tropical plants bearing 

 fruit. The communication between 

 these stoves and the orangery is unin- 

 terrupted by any glass or other division, 

 so that the orange tribe are subjected 

 to nearly as high a temperature as the 

 tropical plants. The central borders 

 of the orangery, as may be seen in the 

 section, are raised a little above each 

 other, as they recede from the front 

 of the house. The oranges, citrons, 

 &c., are all trained as espaliers; a light 

 wire trellis being stretched from pillar 

 to pillar parallel with the borders, and 

 about eight feet high. The spaces, b, 

 between the borders being about three 

 feet wide, permit a person to walk 

 along between the plants, for the pur- 

 pose of pruning, watering, &c. These 

 spaces are of the same depth as the 

 borders, and were originally filled with 

 tan ; but part of this is now removed, 

 and its place is filled with good soil. 

 In this some fine climbing plants have 

 been turned out, amongst which are 

 several plants of Passijlora quadrangu- 

 laris, which bear an abundant crop of 

 fine fruit. Besides these, there are 

 also two fine plants of the beautiful 

 new Gardenia Sherbournia. These, 

 and other climbers, are trained up the 

 rafters, &c., in such a manner as not to 

 materially intercept the light from the 

 orange. The great advantage of having 

 the trees trained on the trellis system 

 is, that every part of the tree is fully 

 exposed to the light, and by planting 

 them in rows one behind the other, a 

 larger surface is obtained for the trees 



and three feet deep; the paths are 

 marked c, the front wall d, and the ; to cover than could be got by adopting 

 back one e; p, p, p, represent orna- I any other plan; and consequently, for 

 mental cast iron pillars, which, besides! the space, a larger quantity of fruit is 



supporting the roof, serve also to sup 

 port light wire trellises ; there is one of 

 these pillars in each row for each rafter. 

 The house is entirely heated by smoke 

 flues, two furnaces being placed at /. 

 The dotted lines along the central path 

 show the direction of the flues beneath, 

 from the back to the front entrance, 

 when they diverge, the one entering a 

 raised flue, g, on the right, the other 

 also entering a raised flue on the left. 

 These flues again cross the house at 



procured. The trees being hung loose- 

 ly and irregularly to the wires, assume 

 as natural an appearance as circum- 

 stances will permit, and the introduc- 

 tion here and there of large plants in 

 pots has a tendency to prevent formal- 

 ity. Two plants are placed in each 

 border." — Gard. Chron. 



O R B E A . Twenty-three species. 

 Stove evergreen shrubs. Cuttingsslight- 

 ly dried ; sandy loam and lime rubbish. 



ORCHARD is an inclosure devoted 



each end, and the smoke escapes by ; to the cultivation of hardy fruit trees, 

 the back wall; it being found incon- I In it may be, as standards, apple-trees, 

 venient to place the furnaces in any most sorts of pears and plums, and all 

 Other situation. | sorts of cherries, which four are the 



