As I believe it exists in this country in a living state I 

 subjoin* its character, taken from specimens given me by 

 Mr. Bateman, and from others in the herbarium of Dr. von 

 Martius. 



Fig- 1. shews the petals and labellum, seen from one side ; 

 % is a view of the labellum from the inside ; 3. is the column, 

 with the pollen-masses adhering to the apex ; 4. are the 

 pollen-masses themselves, placed considerably below the upper 

 end of their caudicula. 



In cultivating this species great care must be taken not 

 to let too much water into the scales of the young shoots, for 

 it is very apt to rot them, and so spoil the pseudo-bulbs. The 

 temperature of the stove in which it is grown should be kept 

 low in the cold and cloudy weather of winter, and gradually 

 raised as spring advances. In fact it is very unnatural, and 

 highly injurious to grow plants of this kind in a temperature 

 of 70" or 80*' in the dull weather of winter, for it is applying 

 the stimulus of heat without the corresponding action of 

 light. 



It should be potted in brown turfy peat well mixed with 

 drainage, and treated generally as other plants of this kind. 



* Maxillaria rhombea ; acaulis, pseudobulbis ovalibus ancipitibus, 



foliis , vaginis acutis carinatis, bractea ovario sequali, sepalis peta- 



lisque acutis, labello subrhombeo-trilobo : lacinia intermedia oblonga apicu ■ 

 lata medio exarata lateralibus nanis rotundatis appendice plana retusa lon- 

 gioribus. Mexico, OaxaQse, Karwimki. 



