146 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



of the perianth, hence the name " troglodite." It is a native of New 

 Grenada. 



No plant in the whole Orchid genera excites more curiosity, surprise, 

 .and interest than Masdevallia 7miscosa, remarkable for its mossy 



peduncles and the extraordinary sensitiveness of its labellum. Upon the 

 slightest touch of a tubercle at its base, the lip, at first slowly, then 

 suddenly, closes itself upwards towards the column, where it remains 

 fixed for about half an hour and then descends. This arrangement is 

 evidently connected with the fertilisation of the flower, and its effect 



