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Nuytsia Vol. 7, No. 2 (1990) 
8432 (PERTH); between Kokardine and Cadoux on roadside, P. Roberts 28 (PERTH); roadside 
halfway between Cadoux and Kokardine, B./l. Smith 218 (PERTH); 1 53(243] mile peg on Hydcn 
Road [13 km SE of Corrigin on main road to Kondinin], D. Young 109 (PERTH). 
Distribution. South-west Western Australia in Avon and Roe Botanical Districts (1:250, 000 maps 
H50-11, 16; 150-3, 4). Confined to an area bounded by Quairading E to near Gibb Rock and S to 
Kulin. One population occurs between Cadoux and Kokardine, c. 150 km N of Quairading, outside 
the main distribution. 
Habitat. Well-drained sand or more often clay-loam on open undulating terrain. 
Flowering and fruiting periods. Flowers May — September; only old fruit- valves seen. 
Conservation status. 3RC, using the criteria of Briggs & Leigh(1988). 
5. Acacia lanei Cowan & Maslin, sp. nov. (Figure 2, D-F) 
Frutex effusus 2 m altus, ramulis tcrctibus, rcsinoso-coslatis, albo-sericeis. Stipulae caducae vcl 
per resinam albam obscurae, triangulares, c. 1 mm longae, glabrae. Phyllodia ligulala, complanata, 
obtuse-acuta, pulvino 1-1.5 mm longo, 43-60 mm longa, 3-5 mm lata, coriacea, asccndentia, recta 
vel lcviter curvata, glabra albo-scricca ct rcsinosa ad basem cxcepta, 3-ncrvata per superficiem, 
nervis secondariis paucis, glande parve, prope basem. Racemorum axis 1-3 mm longus, rare ad 
7 mm longus, saepc nullus, 1- vcl 2-capitulatus, albo-scriccus, rcsinosus ad basem; bracLcis 
basalibus ovatis ad lanceolaiis, c. 1 mm longis. Pedunculi 3-5 mm longi, micro-puberuli, pilis 
rubris ct albo-sericeis sed versus apicem pilis per resinam obscuris. Capitula globularia, 4-6 mm 
diametro, 34-38-floribus. Flores 5-mcri. Sepala c. dimidia quam longa petala, lincaria, discreta, 
micro-pubcrula ad apicem. Petala oblanccolato-elliptica, discreta, glabra. Legumen 
arcuato-lincarc, 8.5-12 cm longum, 2-3 mm latum, supra semina elevatum, glabrum, viscidum. 
Semina longitudinalia, oblonga, 3.5-4.5 mm longa, 1.5-2 mm lata, nitido-brunnea, pleurogramma 
2.5-3 mm longa, arillo apicali. 
Typus: 3.6 miles [5.7 km] E of Hydcn on road to Holt Rock, Western Australia, 14 July 1970, 
B.R. Maslin 566 (holo: PERTH; iso: BRI, K). 
Spreading shrubs 2 m tall. Branchlels terete with several resinous ridges, white sericeous but 
pubescence ± obscured by resin. Stipules caducous or obscured by whitc(dry) resin, triangular, 
about 1 mm long, glabrous. Phyllodes ligulate, bluntly acute, with a pulvinus 1-1.5 mm long, the 
blades 43-60 mm long, 3-5 mm wide, coriaceous, ascending, straight or weakly curved, glabrous 
except whitc-scriccous and resinous at base, with 2 or 3 distant, longitudinal main nerves on each 
face, secondary nerves numerous, finer than main nerves and parallel to them, anastomoses few, 
nearly longitudinal. Gland small, situated on the upper margin of phyllode just above pulvinus. 
Raceme axes 1-3 mm long, rarely to 7 mm, frequently absent, 1- or 2-hcadcd, white-sericeous and 
resinous basally; basal peduncular bracts ovate to lanceolate, c. 1 mm long. Peduncles 3-5 mm 
long, with many red micro-hairs and white-sericeous basally, upper portion sericeous but hairs ± 
obscured by resin. Flower-heads globular, 4-6 mm diam., 34-38-fiowcrcd. Bracteoles spalhulate, 
blade rounded, much shorter than filiform stipe. Flowers 5-mcrous. Sepals half as long as petals, 
linear, free, micro-pubcrulous apically. Petals oblanccolatc -elliptic, free, glabrous. Legumes 
arcuate-linear, 8.5-12 cm long, 2-3 mm wide, raised over seeds, glabrous, viscid. Seeds 
longitudinal, oblong, 3. 5-4. 5 mm long, 1.5-2 mm wide, shining, brown; plcurogram 2.5-3 mm long; 
aril apical. 
Other specimens examined. WESTERN AUSTRALIA: R.J. Lane’s property, Kulin, 22 km S of 
Hydcn, 21 Aug. 1985, K. Atkins s.n. (CANB, MEL, NSW, NY, PERTH 00336971); Hydcn, July 
1979, RJ. Lane s.n. (PERTH 00336963); approx. 12 km S of Hydcn, 27 July 1982, R.J. Lane s.n. 
