NANODES ODONTOGLOSSUM. 211 



M. jJcirdinum. — Another very beautiful species, also from 

 Mexico, unfortunately seldom seen in collections ; the sepals 

 and petals are bright yellow, spotted with rich brown. Native 

 of Mexico. 



Nanodes. 



N. Medusa. — This is a very rare, most extraordinary, and 

 beautiful plant, very distinct in habit from any other Orchid 

 I have seen. There is no bulb to support it, only a woody 

 stem with light green leaves on both sides, which are about 

 three inches long ; flowers large terminal, produced two or 

 more together ; sepals and petals light green, tinged with 

 brown ; lip large and spreading, deeply fringed round the 

 margin, rich maroon in colour, except towards the base, where 

 it is green. It is a plant well worth growing, and will require 

 to be grown on a block, and kept very cool, as it is a native 

 of the higher Andes of Western S. America. 



Odontoglossum. 

 To this magnificent genus of Orchids so many fine additions 

 have of late years been made, that it now contains some of 

 the showiest species in cultivation. It is a large genus, many 

 of the species producing flowers of inferior merit ; but those 

 here described are worthy of a place in every collection. All of 

 them are evergreen ; some have stout, thick pseudobulbs, very 

 compact in growth, while others have small bulbs, with small 

 narrow leaves. All produce their flower spikes from the base 

 of the pseudobulbs, and require an intermediate or cool-house 

 to grow them luxuriantly. With the exception of 0. citrosmum 

 and 0. Phalmnojms, which thrive best with the Cattleyas, I 

 find them succeed best in a cool-house, the temperature of 

 which ranges from 45*^ to 55°. Some are best gi^own on 

 blocks, while others do best in pots, in peat and moss mixed 

 together, with good drainage, a Liberal supply of water at the 



