&6 ORCHIDS : HOW TO GROW THEM SUCCESSFtrttY. 



ODONTOGLOSSUM Eossn. From Mexico. 



This, although one of the most common, is a very beautiful dwarf 

 growing species, and is imported in large quantities. The flowers are 

 usually of a white colour, much barred and spotted with brown- 

 chocolate, each spike carrying from two to four flowers, .varying 

 considerably on each plant, some being small, others much larger ; the 

 flowers being well filled up with bright rich colours. Its varieties, 

 majus and rubescens, are of greater value, the former being larger 

 and fuller, and the latter being a veiy dark rose colour. This 

 Odontoglossum does best when grown in a shallow pan or teakwood 

 basket, not too large, and suspended from the roof of the house about 

 12 to 18 inches from the glass. It should have the same compost and 

 treatment as O. crispum, but the repotting into pan or basket should 

 be done when new growth commences, seeing that neither are too large 

 for the plant, just leaving a narrow margin betwixt the plant and the 

 outside of the pan or basket. It is a very hardy kind and may be 

 grown in the coolest part of the house, and it is a spring-flowering 

 Orchid and must be watered as recommended for O. Cervantesii. 

 Where a number of plants of it are grown, it may be had in bloom 

 from January until June. 



Good strong healthy plants should be purchased at from Is. to 

 Is. 6d. per leading bulb. 



OFCIDIUM MACRANTHUM. From Ecuador. 



This Orchid, when in robust condition, is a strong, stately plant, 

 but, like most of the Cool-house Oncidiums, the enormous spikes it 

 throws greatly weaken the plant if allowed to remain on it too long, 

 and when it is seen to suffer in this way it is a good plan, in the 

 following year, to pinch out the flower spikes as soon as they appear, 

 thus giving the plant a chance of recovering its strength. The flower 

 spikes of this Orchid grow to a great length, with short flowering 

 branches springing from the main stem, and it is advisable to train it 

 round two or three neat sticks. The colour is golden yellow, with a 

 small portion of purplish brown, and the treatment of the plant should 

 be the same as that recommended for O. crispum, but it may be kept 

 at the warmest end of the house. 



Good strong plants can be obtained at from 5s., 7s. 6d. to 10s. 6d. 

 each, newly imported or established. 



ONCIDIUM TIGRINTJM. From Mexico. 



This is another very strong growing Orchid, having larger and 

 rounder shaped pseudobulbs than the preceding species; it throws 

 branched flower spikes, and the flowers have a beautiful large yellow 

 lip or labellum, the sepals and petals being marked with rich dark 



