TOPOGRAPHICAL, ECOLOGICAL, AND TAXONOMIC NOTES. 355 



Plate X. 



Fig. 7. Festuca liUoralis building a horizontal bank on the beach 

 at Deewhy. 



Fig, 8. Hibbertia volubilis holding the sand on an exposed ridge, 

 Deewhy Beach. 



Plate XI. 

 Pig. 9. Solarium sodomceum retaining the crest of a hillock at 

 Maroubra Bay. 



Fig. 10. Xerotes longifolia protecting the verge of the eroded 

 dune embankment, Maroubra Bay. 



Plate XII. 



Fig. 11. Correa alba exhibiting a flattened contour as a result of 

 exposure to the on-shore wind, Maroubra Bay. 



Fig. 12. Leptospermum Icevigatum compressed horizontally by the 

 on-shore wind. Height at rear 12 feet. Deewhy 

 Beach. 



Plate XIII. 



Fig. 13. Sccevola suaveolens forming a carpet 18 feet by 24 feet 

 Maroubra Bay. 



Fig. 14. Hydrocotyle umbellata var. bonariensis ascending from 

 the lagoon to the top of a dry sandhill, Deewhy Beach. 



