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Nuytsia Vol. 7, No. 2 (1990) 
Key to taxa 
1 . Phyllodes four times or more longer than wide 
2. Phyllodes terete 7. A. lobulata 
2. Phyllodes flat 
3. Flowers 4-merous 8. A. spongolitica 
3. Flowers 5-merous 
4. Phyllodes obviously soft-pubescent 
5. Phyllodes and branchlets densely lanate, 
nervation of phyllodes ± obscured by pubescence 6. A. lanuginophylla 
5. Phyllodes and branchlets villose but phyllode nervation not obscured 
6. Phyllodes more than 2.5 cm long and 3 mm wide; 
legumes 6-8 mm wide, strongly plicate 3. A. consobrina 
6. Phyllodes less than 2.5 cm long and 3 mm wide; legumes 3-4 mm wide, 
straight, undulate or ± coiled, not at all plicate 
7. Phyllodes linear-oblanceolate; flower heads not borne in racemes. .A. chrysopoda 
7. Phyllodes elliptic; flower heads in 1 - or 
2-headed racemes 4a. A.flavipila vai.flavipila 
4. Phyllodes glabrous or, especially when young, inconspicuously 
sub-glabrous 
8. Phyllodes 12-15 times as long as wide; at least base of peduncles 
and phyllode axils with hoary patch of resin-matted hairlets 5. A.lanei 
8. Phyllodes less than 8 times as long as wide; base of peduncles 
and phyllode-axils not hoary 
9. Phyllodes with gland at blade/pulvinus junction; pubescence 
on young branchlets and phyllodes simple and stellate (l(X)x); 
legumes constricted between seeds A. ixiophylla 
9. Phyllodes with gland 2-12 mm above pulvinus; all pubescence simple 
10. Racemes 2-headcd; phyllodes narrowly elliptic; 
secondary-nerve reticulum fine, regular 9. A.verricula 
10. Racemes 1-headed or flower heads solitary, borne on an 
inflorescence axis or not; phyllodes of other shapes, the 
secondary-nerve reticulum coarse, indistinct, or poorly developed 
11. Flower heads solitary, inflorescence axis absent; phyllodes 
oblong-oblanceolate to oblong-elliptic, secondary nerves impressed, 
coarsely reticulate 2. A. cassicula 
1 1 . Flower heads solitary on an axis; phyllodes of other shapes, 
secondary nerves more or less raised, not obviously reticulate 
12. Phyllodes arcuate-oblong narrowly; peduncles with crisped white 
pubescence; branchlets and phyllodes not resinous A. kingiana 
