872 LIST OF THE ORCHIDE.E OF THE MUDGEE DISTRICT, 



36. Pterostylis cycnocephala, R. D. F. 



Also a common plant, but begins a little later than the preceding, 

 and rarely lasts past the middle of September. 



37. Pterostylis rufa, R. Br. 



Generally distributed. Flowers in September and November, 

 but I have found it as early as July. 



38. Pterostylis Mitchelli, Lind. 



Common. Generally considered a variety of No. 37, but they 

 seem very distinct indeed to me. Flowers in September, October, 

 and November. 



39. Pterostylis squamata, R. Br. 



Another form usually included in P. rufa. Generally distri- 

 buted on rocky hill-sides. Flowers from September to November. 



40. Pterostylis Woollsii, R. D. F. 



Plentiful on the eastern slope of the Beaudesert Hills. Flowers 

 in October, November, and December. 



Dr. Woolls also collected P. gibbosa, which belongs to the same 

 group as the preceding four, but I believe it is now generally 

 considered to be a variety only. 



41. Pterostylis longifolia, R. Br. 



This variety differs from Mr. Fitzgerald's figure in having a 

 perfectly smooth labellum. It flowers from June to September. 



42. Caleana minor, R. Br. 

 Very rare. Flowers in November. 



43. Acianthus fornicatus, R. Br. 

 Very common. Flowers from April to September. 



