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the precise locality is not known but from his journal we deduce the collection was made in 
grid-cell E51-8, not actually on the Fitzroy River but in its general area. 
Habitat. Grows in sandy soil usually on sandstone in open scrub and, where the soil is deeper, in 
woodland. 
Flowering and fruiting periods. Flowering specimens have been collected in March and between 
May and August; legumes with mature seeds have been collected in May, June and August from 
plants still in flower. 
Conservation status. Not considered rare or endangered. 
2b. Acacia deltoidea Cunn. ex Don subsp. ampla Cowan & Maslin, subsp. nov. (Figure 1, N). 
Phyllodia firme charlacea, inaequilateraliter elliptica ad clliplico-ovata, contracto-acuta, 
mucronata, 15-16 mm longa, 5.5-7 mm lata. Pedunculi 18-25 mm longi, glandulan-puberuh, 
plerumque supra medium bracteam ferenti, bracleolis non exsertis in alabastro maturo. 
Typus- Lawley R. gorge, Western Australia, 29 July 1921, C.A. Gardner 996 (holo: PERTH; iso: 
NSW, PERTH - C.A. Gardner "1496”). 
Phyllodes thinly coriaceous, inequilaterally elliptic to elliptic-ovate, acute, mucronate, 
15-16 mm long, 5.5-7 mm wide. Peduncles 18-25 mm long, glandular-puberulous, usually with a 
narrowly lanceolate bract above its middle; bracteoles not exserted in bud. 
Other specimens examined. WESTERN AUSTRALIA: base ot Bougainville Peninsula on E shore 
of Admiralty Gulf, P.A. Fryxell, L.A. Craven & ./. McD. Stewart 4782 (CANB, PERTH). 
Distribution. Northern Western Australia in northern part of the Gardner Botanical District 
(1:250,00 maps D51-12 and D52-9). Known only from two localities separated by 60 km in the 
Admiralty Gulf area. 
Habitat. Grows in woodland on sandstone. 
Flowering and fruiting periods. Flowering specimens have been collected in June (with legumes 
with sub-mature seeds) and in July. 
Conservation status. 2K, following the criteria of Briggs & Leigh (1988). This is a poorly known 
taxon that may be rare, but the area is very poorly collected and dilticuli ot access. 
Discussion. The differences separating subsp. ampla from the typical subspecies arc mostly 
quantitative but they combine to produce quite a different appearing plant. Pcdlcy (1987) 
considered it to be only a large-phyllode form of this species but it is so different, especially in 
phyllode form and size, that we prefer recognizing it as a subspecies, thereby calling it to the 
attention of future monographers. 
Note Gardner’s collection numbers 1496 and 996 do refer to the same collection, as Pedley (1987) 
presumed; the first is the Western Australian Forest Deparunent number, the second Gardner’s own 
herbarium number. 
Etymology. The subspecies name refers to the size of the phyllodes which are much larger than 
those of the typical subspecies. 
