96 SOBRALIA. 



for the first two or three weeks from the com- 

 mencement of their fresh growth, but when they 

 begin to produce new roots, it will be required 

 two or three times a week; a little sphagnum, 

 also, should be placed over the surface of the 

 mould, as it will keep the mould from drying, 

 and offer a medium into which the roots will ex- 

 tend themselves with avidity ; when the season's 

 shoots are grown seven or eight inches long, I 

 syringe them two or three times a day, if the 

 weather be fine and clear, as it preserves their 

 leaves from the ravages of that minute pest the 

 thrij), to which they are extremely subject, if 

 grown in a dry atmosphere. When the plants 

 begin to show signs of flowering, which usually 

 occurs between the beginning of September and 

 the middle of October, syringing should be dis- 

 continued, and after they have completed their 

 season's growth, watering also should be reduced 

 through the winter months ; they will require a 

 diminished quantity about once a week, and also 

 a lower temperature, but while growing, the same 

 as is recommended for the South American spe- 

 cies in the beginning of this work. 



