47 



CHAPTER IX. 



THE GENERA BRASSIA, ONCIDTUM, CYRTOCHI- 

 LUM, MILTONIA, AND ODONTOGLOSSUM. 



These genera are also inhabitants of various 

 parts of Demerara, Brazil, and Guatemala; they 

 are extremely beautiful, and at the same time 

 easily flowered when properly treated; their 

 flowers also last for a great length of time if 

 taken out of the growing-house when fully ex- 

 panded and put into a cooler one. But before 

 entering on the subject of their cultivation, I 

 will venture to make a few remarks on the 

 structure of their flowers, as they are so nearly 

 related to each other in their botanical character, 

 although different in outward appearance : in my 

 opinion they are nothing more than a sectional 

 division of the genus Oncidium, they being so 

 closely related to each other, and no doubt, 

 form the nucleus of a group of Vanclece ; I 

 have examined them at various times, and 

 found that the genus Oncidium has a column 

 with two ears and the labellum ; a distinct-lobed 



