868 LIST OF THE ORCHIDE^E OF THE MUDGEE DISTRICT, 



8. DlURIS AUREA, Sm. 



Flowers in September and October. 



9. Diuris maculata, Sm. 

 Widely distributed. Flowers in September and October. 



10. DlURIS PEDUNCULATA, K. Br. 



Found all over the district. It is the first of the family to 

 blossom, beginning early in August, and lasting well on into 

 September. It bears seed very freely from its being frequented 

 by a small brown and hairy beetle (Liparetrus sp.), which gnaws 

 the ridges off the labellum, and at the same time fertilises the 

 plant. 



11. DlURIS ABBREVIATA, F. V. M. 



This species frequents the hills, and flowers from the beginning of 

 October till early in November. It is sometimes fertilised by a 

 folding-back of the stigma, a striking exception to the other 

 members of the genus, which are sterile without the aid of insects. 

 In this respect it approaches Orthoceras strictum. 



12. DlURIS sulphurea, It. Br. 



Common on the lowlands. Flowers in September and October. 



13. DlURIS tricolor, R. D. F. 



Jour. Bot. Vol. XXIII. 1885, p. 135. 



Mr. Fitzgerald named this plant from specimens which I sent 

 him. It is common all over the district, but cannot be mistaken 

 for any other species. It is nearest to D. elongata, but differs 

 much in habit as well as in structure. Baron von Mueller, to 

 whom I sent some dried plants, informs me that he has had it 

 from other localities. 



