734 



NOTES FROM THE BOTANIC GARDENS, SYDNEY. 



No. 10. 

 By J. H. Maiden and E. Betche. 



RUTACEiE. 



ZiERiA ASPALATHOIDES, A. Cuiin., with pink flowers. 



Pinnacle Mount, 30 miles south of Forbes (R. H. Cambage; 

 September, 1900); The Rock, near Wagga Wagga (Mrs. A. R. 

 Phillips; September, 1904). 



All species of Zieria have white flowers, as far as we know, 

 except Z. aspalatlioides, which seems to have alwa3's pale to deep 

 pink flow^ers. The specimens from The Rock are very pretty, 

 with a striking colour-combination in the individual flowers; the 

 petals have the colour of our Native Rose, Boronia serrulata; 

 the anthers are brick-red, and the prominent glands of the disc 

 are of a dark blue, almost black colour. The brick-red colour of 

 the anthers is due to the pollen and not to the cells; therefore the 

 anthers appear white in the young flowers, but red when they are 

 ready to burst and shed the ripe pollen. Zieria laevigata, Sm., 

 and Z. Sniithii, Andr., have the same bright red pollen, but we 

 cannot say whether that character goes through the whole genus; 

 the colour of the pollen is so transitory that it can never be 

 observed in herbarium specimens. Further observations in the 

 field are wanted to settle that question. 



Boronia mollis, A. Cunn. 



Coff's Harbour to Grafton (J. H. Maiden and J. L. Boorman; 

 November, 1903). 



Boronia mollis is a very variable plant. The leaflets var}'- in 

 number from 3 to 11 (Pittwater specimens); they vary greatly in 



