Journal of the Royal Society of Western Australia, 87(2), June 2004 
Table 1 
Taxa of conservation significance from the southern Forrestania greenstone belt (Middle Ironcap to Hatter Hill). Three taxa are listed as 
Declared Rare Flora under Wildlife Conservation Act; 29 are being considered for listing. Ten taxa are considered to be endemic to the 
range and a further eight which occur on similar landforms within 100 km, are considered to be regional endemics. 
Family 
Taxon 
Conservation status 
Endemic status 
Dilleniaceae 
Hibbertia axillibarba 
potentially threatened 
local 
Hibbertia carinata 
potentially threatened 
Hibbertia lepidocalyx subsp lepidocalyx 
regional 
Droseraceae 
Drosera browniana 
local 
Epacridaceae 
Acrotriche patula 
potentially threatened 
Leucopogon marginatus 
threatened 
Leucopogon sp Ironcaps (N Gibson & K Brown 3070) 
potentially threatened 
Leucopogon sulcatus 
potentially threatened 
Monotoca leucantha 
potentially threatened 
Loganiaceae 
Logania exilis 
potentially threatened 
regional 
Mimosaceae 
Acacia heterochroa subsp robertii 
potentially threatened 
regional 
Acacia singula 
potentially threatened 
Acacia tetraneura 
potentially threatened 
Myoporaceae 
Calamphoreus inflatus 
potentially threatened 
Eremophila racemosa 
potentially threatened 
Myrtaceae 
Eucalyptus exigua 
potentially threatened 
Eucalyptus georgei subsp fulgida 
potentially threatened 
regional 
Eucalyptus rugulata 
local 
Euryomyrtus leptospermoides 
potentially threatened 
Melaleuca agathosmoides 
potentially threatened 
local 
Papilionaceae 
Eutaxia sp Hatter Hill (KR Newbey 6532) 
potentially threatened 
regional 
Mirbelia densiflora 
potentially threatened 
Pittosporaceae 
Bentleya diminuta 
potentially threatened 
Proteaceae 
Banksia sphaerocarpa var dolichostyla 
threatened 
regional 
Dryandra ferruginea subsp flavescens 
potentially threatened 
Dryandra viscida 
potentially threatened 
local 
Grevillea insignis subsp elliotii 
potentially threatened 
local 
Grevillea lullfitzii 
potentially threatened 
local 
Rhamnaceae 
Cryptandra intonsa 
potentially threatened 
local 
Stenanthemum liberum 
potentially threatened 
local 
Rutaceae 
Boronia rewluta 
threatened 
local 
Microcybe pauciflora subsp grandis 
potentially threatened 
regional 
Phebalium brachycalyx 
potentially threatened 
Sterculiaceae 
Lasiopetalum sp Ironcaps (PG Wilson 7024) 
potentially threatened 
regional 
Stylidiaceae 
Stylidium sejunctum 
potentially threatened 
the two quadrats of type lb. Species group J 
contained three local and one regional endemic 
taxa. Type lb was restricted to area around South 
Ironcap. Type lc generally lacked taxa in species 
groups I and J and was found at Middle Ironcap 
and Hatter Hill area. Type lc had slightly lower 
species richness (mean 23.6) compared with types 
la and lb (29.1-29.5). 
• Community type 2 were generally mallee 
shrublands or Allocasuarina thickets primarily 
found on massive laterites. Species composition 
varied from community type 1 by stronger 
representation from species groups A-D and lower 
representation from species groups I, J and most 
taxa in species group K. Indicator species for this 
community type occurred in species groups B and 
D (Appendix 2). Species richness tended to be 
lower than in community type 1 (20.3 taxa plot' 1 ). 
Distribution of this community was again closely 
correlated with the massive outcrops at Middle 
Ironcap, Digger Rock and Hatter Hill, it was not 
recorded from South Ironcap (Fig 1). 
• Community type 3 were eucalypt woodlands 
dominated or co-dominated by Eucalyptus urna and 
E. salubris occurring on the colluvial deposits on 
the flats below the outcrops or on the broad flat 
ridges along the range generally with an 
understorey dominated by Melaleuca spp (Fig 1). 
Species richness was considerably lower (14.4 taxa 
plot 1 ) and this community was characterized by 
species group E -H, with indicator species being 
concentrated in species group E (Appendix 2). 
Only one local endemic (Melaleuca agathosmoides) is 
found in these species groups, all the other local 
and regional endemics are restricted to community 
types 1 and 2. 
• Community type 4 was a species poor mallee 
community generally dominated by Eucalyptus 
calycogona with large emergent Eucalyptus 
salmonophloia on small colluvial flats in the ranges 
(Fig 1). One quadrat in this group was dominated 
by E. longicornis. Species richness was low with an 
average 12.5 taxa plot 1 . Indicator species for this 
community type were Eucalyptus calycogona, 
Eucalyptus salmonophloia, and Olearia muelleri 
(Appendix 2). 
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