ti2 OECHIDS. 



SECTION V. 

 ORCHIDS. 



The Natural Order Orchidacese is a very extensive one, com- 

 prising many genera with numerous species and varieties, 

 representatives of which are met with in nearly every part of 

 the world. The flowers produced by some of the tropical 

 species are unsurpassed for brilliancy and beautiful colouring, 

 and the scientific interest possessed by others claims for them 

 a place in public favour. A fine display of orchids at an 

 exhibition is always a point of great attraction to the visitors 

 as well as to the connoisseur. 



In selecting orchids for exhibition, special attention should 

 be given to those of a free-flowering nature, with large showy 

 flowers, rich in attractive colours, of a pleasing odour, and 

 having an imposing appearance when the plant is in full 

 bloom. In order to grow the various classes of orchids to 

 perfection, it is considered necessary to have three houses, 

 or three divisions in a range of houses, set apart for them, 

 and usually known as the "East-Indian," "Mexican," and 

 " Peruvian " house, respectively. These houses should be 

 constructed and arranged specially to meet the wants of 

 orchids requiring either tropical, temperate, or cool treatment. 

 The ventilation and heating must be fully equal to all possible 

 demands, and an abundant supply of soft clear water must 

 always be at command. The heating apparatus should be 

 capable of supplying a night temperature of 70° to the East- 

 Indian house, 60° to the Mexican house, and 50° to the 

 Peruvian house, in all conditions of weather. The houses 

 should be fitted in their interiors so that the plants can 

 always be grown near the glass, as they mostly require all 

 the light they can get on dull days, and the necessary shade 

 from bright sunshine can always be given with proper appli- 

 ances. When shade is required, it is best applied by move- 

 able scrim canvas, of the proper thickness to give the desired 



