n8 THE BOOK OF ORCHIDS 



to its creeping rhizome, should be fastened on pieces 

 of tree fern, and be cultivated in the same house as the 

 Odontoglossums. Zygopetalum citrina, Z. stape/ioides, and 

 Z. Rolissonii, formerly known as Promenoeas, should be 

 grown suspended in shallow pans in the cool house. 

 All Zygopetalums require shade and a constant supply 

 of water during the growing season. 



