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Nuytsia Vol. 7, No. 2 (1990) 
4. Acacia patagiata Cowan & Maslin, sp. nov. (Figure 1) 
Frutices 0.5-2.5 m aiti, corticc cinerea, laevi versus basim aspri excepia, ramulis glabris vcl 
subglabris, rubro-brunneis. Phyllodia angustc clliptica ad anguste oblongo-oblanceolata, acuta vel 
obtusa et oblique mucronata, versus basim attenuata, pulvino 1-1.5 mm longo, glabro, lamina 25-55 
mm longa, 3-8 mm lata, plus minusve valde incurvaia, glabra, subglauca ad glauca, nervis tons 
pariter distinctis vel 1-3 elevatioribus in quoque supcrficie, venulis pravis, tenuibus, incompletis, 
nervo marginale valido, luteo, glandibus 2 vel 3 phyllodiorum juxta basem, medium el apicem. 
Pedunculi (2-)3-6(-7) mm longi, plerumque glabri et glauci, 2-4 in quoque axilla. Capitula 
globularia, 3-5 mm diametro, 16-24-floribus. Flores tetrameri. Sepal a petal is minus quam dimidia 
breviora, 1/4-3/4-connata, lobis plus minusve ovalibus. Petala discreta, glabra. Ovarium dense 
appresso-puberulum. Legurnina lincaria, 40-95 mm longa, 2-3.5 mm lata, pendentia, subrecta ad 
valde curvata, saepe glauca, suluris anguste incrassatis, lutcis ad diluto-brunneis. Semina 
longitudinalia, oblonga ad clliptico-oblonga, 3. 5-4. 5 mm longa, 2-2.5 mm lala, nitide atro-brunnea 
ad nigra; pleurogramma 2-2.5 mm longa, peranguste; arillo pallido, apicali, galeato. 
Typus: 7 km S of Mount Madden towards Ravcnsthorpe, Western Australia, 28 August 1973, 
B.R. Maslin 3446 (holo: PERTH; iso; AD, B, BM, BRI, CANB, G, K, MEL, MO, NSW, NY, W). 
Rounded shrubs 0. 5-2.5 m tall, spreading 1-2 m diam. Bark grey, smooth, except more or less 
roughened at extreme base of main trunks. Branchlets slightly angled at tips, soon terete, glabrous 
or sparingly appresscd-puberulous, glabresccnt, red-brown. Stipules caducous. Phyllodes narrowly 
elliptic to narrowly oblong-oblanceolate, acute to obtuse, more or less excentrically mucronate, the 
mucro straight or curved, dark brown, hard, coarsely pungent, tapering to pulvinus 1-1.5 mm long, 
glabrous, blades 25-55 mm long, 3-8 mm wide, rigid-coriaceous, ascending to erect, rather strongly 
incurved, glabrous, subglaucous to glaucous; all nerves equally distinct but most often one 
mid-nerve or 3 main longitudinal nerves more strongly raised, yellowish, numerous finer venules 
appearing as irregularly parallel, commonly incomplete, dark lines in the blade, inter-nerve spaces 
many times wider than the main nerves, strong marginal nerves yellow, about equally thick as the 
blade. Glands 2 or 3, situated near base, middle and apex on upper margin of phyllode. Peduncles 
(2-)3-6(-7) mm long, 2(-4) per axil, glabrous or occasionally with few appressed hairs, sometimes 
more or less glaucous; basal peduncular bract caducous, cucullate, broadly ovate, glabrous except 
ciliolate. Flower-heads globular, golden, (3-)4-5 mm diam., 16-24-flowered. Bracteoles 
spathulate-obovate, ciliolate. Flowers 4-mcrous. Sepals less than 1/2 length of petals, 
1/4-3/4-united, lobes ± oval, ciliolate. Petals free, glabrous. Ovary densely appressed puberulous. 
Legumes linear, somewhat raised over and constricted between seeds, 40-95 mm long, 2-3.5 mm 
wide, pendent, cruslose, nearly straight to curved (old valves coiled and twisted), glabrous, 
sometimes slightly glaucous, dark-brown with narrow, yellow to light brown marginal nerves. 
Seeds longitudinal, oblong to elliptic-oblong, 3. 5-4. 5 mm long, 2-2.5 mm wide, compressed, glossy, 
dark brown to black; pleurogram 2-2.5 mm long, very narrowly U-shapcd; arcole more or less 
depressed; aril apical, about 1/3 as long as seed, galcatc. 
Selected specimens examined. WESTERN AUSTRALIA: Jerramungup, 40.3 km E of Ongcrup, 
r.E.II. Aplin, 1. Lethbridge and R. Coveny 3330 (PERTH); Pingrup, W.E. Blackall 3082 (PERTH); 
37.5 km NNW of Mt Ncy, M.A. Burgman 1848 and S. McNee (PERTH); 19.5 km due SE of 
Muckinwobert Rock, M.A. Burgman 4030 (PERTH); near Carracarrup Creek, 15 km S of 
Ravensthorpe, G. Craig 1526C (MEL, PERTH); approx. 9 km E of Scaddan on Scaddan Road, 
G. Craig 1675 (PERTH); 31.6 mi [50.6 km] E of Lake King towards Norseman, R. Camming 2588 
(AD, BRI, PERTH); Phillips River crossing, 17 km W of Ravensthorpe towards Jerramungup, 
B.R. Maslin 3460 (AD, B, BM, BRI, CANB, G, K, MEL, NSW, PERTH); Mungltnup area, east of 
Ravensthorpe, B.R. Maslin 4480 (MEL, PERTH); 6 km NW of Boxwood Hill, K. Newbey 4261 
(PERTH); 25 km ESE of Mt Gibbs, Frank Hann National Park, K. Newbey 5421 (PERTH); gate at 
rabbit-proof fence, Mt Madden, R.A. Saffrey 316 (BM, NSW, NY, PERTH, W); Phillips River 
Crossing, Ravcnsthorpc-Jerramungup road, M.D. Tindale 3820 (BRI, CANB, K, MEL, MO, US). 
Distribution. South-west Western Australia in Roc and Eyre Botanical Districts (1:250,000 maps 
150-8, 12; 151-1, 5, 6). Common throughout its range, from Pingrup E to near Mt Ney with a 
northern limit in the Frank Hann National Park, 60 km N of Ravensthorpe. 
