92 
Cunninghamia 
Vol. 1 (1): 1981 
Figure 8. Closed-scrub of Banksia erieifolia (Community 8) surrounding small patch of 
Callistemon sp. 
Figure 9. Rock outcrop with patches of Kimzea ambigua and Casiiarina distyla (Community 9). 
Comments: Variation is mainly due to drainage and fire history. A mosaic of 
communities (represented by 4/8 and 6/8 on the vegetation map) is formed by patches 
of trees on better drained, deeper soils. On poorly drained, organic soils, a transition 
zone between heath and sedgeland is found (8/12). Fire afTects height and density 
of the heath. In places, unburnt for 15 years or more, height may reach 5 m. 
Community 9 ROCK Y OUTCROPS with POCKETS OF HEATH 
Structure: Pockets of closed heath sometimes with low open-woodland on 
rock outcrops that generally comprises more than 50% of the cover (Figure 9). 
Habitat: In isolated depressions, on rock platforms, on ridge tops and slopes 
on Hawkesbury Sandstone. 
Distribution: Mainly found south of the Pacific Highway. Often associated 
with heath to low open-woodland. Restricted in area. 
