GREENHOUSE ORCHIDS. 



THEEE are many lovers of plants that would very much like 

 to grow Orchids, but object to them because the notion is pre- 

 sented to their minds that they all require a great heat and 

 peculiar treatment very difficult to understand and put into 

 practice. It is quite true that Orchids from the West and East 

 Indies, or at least the greater part of them, will not thrive well 

 without a high temperature well saturated with moisture when 

 growing ; but it is no less equally true that there are a consider- 

 able number from more temperate climes that will thrive well in 

 an ordinary greenhouse that is, in a temperature averaging in 

 winter from 40 to 45, and in summer from 55 to 65 a tem- 

 perature easily attained during the last-named season without 

 any artificial heat whatever. 



Any amateur, then, in possession of a greenhouse may, without 

 any doubt of success, begin to collect and cultivate these most 

 singular and beautiful plants ; and in order that such cultivators 

 may have some idea how to proceed, I have thought it advisable 

 to write a few papers on their culture, and shall give a list of the 

 species that will bear what I call a greenhouse treatment. 



In order to be better understood, I shall describe the right 

 kind of house for them, then the soils they require, then potting, 

 putting some on blocks, others in baskets, watering, summer 

 treatment, winter treatment, insects ; and, lastly, an alphabetical 

 list of genera in groups that I know will grow in such a house. 



