212 . 



Dorsal sepal about 3 lines, narrowly ovate-lanceolate, 

 greenish with faint pink lines much recurved in mature 

 flower. 



Labellum sessile, pale-prune colour, recurved but not 

 sharply so, margins entire but slightly undulate ; callous 

 portion green or yellowish-green, concave on top, narrow, 

 slightly raised at sides but merging gradually into mem- 

 branous part near the bend ; membranous part pale-pink, 

 narrow-triangular, much exceeding callous portion in area. 



Lateral appendages parallel, not quite as high as rcs- 

 tellum, bluntly linear-falcate, with narrow basal lobe reach- 

 ing about halfway up. 



Rostellum triangular rather higher than lateral append- 

 ages. 



Stigmatic surface reniform, placed about the middle of 

 the anterior surface of column. 



Anther-case reddish-brown; point short, blunt, recurved. 



Pollinia granular ; each mass vertically grooved. 



Ovary slender about 2 lines, close to axis of spike. 



Lateral index about 87. 



Differential Diagnosis. 





P. prmnofium. 



P. Fitzgercddi. 



Plant 



Somewhat slender 



Rather sturdj' 



Flowers 



Close to axis, rather 



Standing out from axis ; 





crowded, not scented 



not crowded strongly, 

 and sweetlj' scented 



Ovary 



Short and slender 



Longer and turgid 



Perianth 



Segments slender... 



Segments stouter 



Lateral sepals ... 



Rather long and slender... 



Short and stout 



Dorsal sepal 



Narrow, much recurved ... 



Wider, not markedly re- 

 curved 



Petals 



Longer, widely spreading, 



Short, not widely spread- 





slender 



ing, rather wide 



Labellum 



Membranous portion much 



Callous part greater than 





greater than callous 



membranous ; widely tri- 





part; narrow-triangular 



angular 



Column 



Lateral appendages nar- 



Lateral appendages widely 





row, falcate 



quadrangular 



Stigma 



Reniform ... 



Almost rectangular 



Begins to bloom about the middle of October. 

 Found growing in alluvial soil at Blackwood 

 National Park. 



and 



