form a helmet, very convex, gibbous at the base, acumi- 

 nated at the extremity, greenish -white, striated. Lower 

 segment (of two combined segments) small in proportion 

 to the rest of the flower, green, with two lanceolato-subulate 

 laciniae. Labellum linear-attenuated, downy, rather thick- 

 ened and obtuse at the extremity. Column green, with two 

 broad, white wings towards the extremity. Germen clavate, 

 furrowed. 



Introduced to the Royal Gardens at Kew from New 

 Holland, in the year 1826. The drawing was made from 

 an excellent flowering specimen, in September, 1828, and 

 obligingly communicated by Mr. Aiton. 



In the direction of the flower, and in the shape of the 

 labellum, this species is altogether different from the P. 

 curia, figured in our next plate. 



i } 7 \ S ' L B / Ck Vie j ° f a m ° wer > nat - size. 2. Labellum, with its penicel- 

 lated appendage. 3. Front view of the Column :— all but fig. 1. magnified. 



