Journal of the Royal Society of Western Australia, 87(1), March 2004 
Desmocladus fascicular is, Dryandra lindleyana subsp 
sylvestris , Stylidium carnosum, Tetraria octrandra and 
Thelymitra crinita. Most range extensions were significant 
increases in easterly occurrence for species with a deep 
southwest distribution, while only Allocasuarina 
campestris significantly increased its westerly position 
from its more inland distribution. 
Patterns of species distributions 
The A21064 locality represents the limits of 
distribution for a number of taxa including Eucalyptus 
argyphea (western edge), Lomandra suaveolens and 
Hemiandra linearis (eastern edge), and Conospermum 
stoechadis subsp. sclerophyllum and Isopogon dubius 
(southern edge). Approximately 24% of the reserve's 
species list have a distribution pattern located within the 
wetter portion of the South West Botanical Province (i.e. 
roughly NW/SW orientated, often occurring near coastal 
and extending inland to the inner/mid wheatbelt 
regions). Another 28% have a similar orientated 
distribution pattern, but these are located within the drier 
portion of the South West Botanical Province (i.e. 
occurring from the inner/mid wheatbelt areas and 
extending eastwards and sometimes overlapping into the 
more arid Eremaean Province). The latter distribution 
pattern frequently extends to the coast north of the 
Eneabba area or to the coast east of Albany. A 
widespread distribution within the South West Botanical 
Province and adjacent Eremaean Province accounted for 
22% of the species distributions of the reserve. Additional 
distribution patterns include the geographically restricted 
(i.e. about 100-150 km radius) accounting for 6% of the 
reserve's flora, south coastal and adjacent agricultural 
districts accounting for 5%, localised distributions (i.e. 
about 50 km radius) accounting for 3% while various 
other distributions accounted for the remainder. 
The first two patterns of distribution accounted for 
52% of the taxa listed for the reserve and are common 
distribution patterns for many taxa of the southwest. The 
area where the edges of these distributions overlap 
represents a 'transitional zone'. A21064 sits squarely 
within this narrow zone. It is also located within the 
western limits of Beard's 1980 map of the South West 
Botanical Province's Avon district. 
Introduced weeds. 
There were 22 weed species (about 6.8% of the flora) 
recorded for the reserve, most occurring in disturbed 
boundary areas adjacent to farmland or beside tracks or 
within old gravel extraction pits. Many are common 
agricultural weeds such as the broadleafs Arctotheca 
calendula (Capeweed), Hypochaeris glabra (Flatweed), 
Erodium botrys and Trifolium campestre, or grasses, such as 
Avena barbata, Bromus diandrus and Lolium rigidium. 
Although weeds are common in these boundary areas 
their extent elsewhere is very limited, apart from the 
orchid Disa bracteata which is scattered throughout 
several communities. Overall, the vast majority of the 
reserve is in near pristine condition. 
Acknowledgements : The authors thank N Marchant and the staff of the 
Western Australian Herbarium (CALM) for their assistance and support 
for this voluntary project. Special thanks to field volunteers H Jensen, L 
Scott and R Davis. We also gratefully acknowledge M Hislop for his help 
and comments on earlier drafts of this paper. 
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