Kodela and Tindale, Acacia dealbata subsp. subalpina 
321 
on the Northern Tablelands of New South Wales are somewhat intermediate between 
the two subspecies and require further investigation in the field. 
Further research could be undertaken to investigate possible edaphic and other 
environmental factors that might influence the characteristics (e.g. foliage size and 
growth habit differences) and distribution of the subspecies. For example, the reduced 
growth habit in subsp. subalpina might be a response to colder climate or shallower 
soils. Population studies and seedling trials would help determine whether the 
variation between the subspecies is continuous or if any morphological differences are 
genetically fixed. Some information is already available from specimens cultivated in 
Canberra from seed collected from near Bulls Flead, Brindabella Range, which have 
retained the small leaf character of subsp. subalpina ( L.D. Pryor s.n., Nov 1953, 
NSW107055 & 107056), and there are specimens of subsp. dealbata with shrub and 
small tree habits from higher altitudes outside the distribution range of subsp. 
subalpina. Field studies of intermediate populations may lead to a better 
understanding of the boundaries of the two taxa. 
Key to subspecies 
1 Leaves mostly 5-14 cm (or sometimes more) long; pinnae mostly 1.5-5.5 cm long; 
pinnules 1.5-6 mm long, (14-) 19-68 pairs. Capitula 22-42-flowered, pale yellow to 
yellow or sometimes bright yellow. Tree to 30 m high, occasionally a shrub 
. subsp. dealbata 
1* Leaves mostly 1.5-8.5 cm long; pinnae 0.5-2.5 (-3) cm long; pinnules 0.7-4 mm 
long, mostly 10-37 pairs. Capitula 13-34-flowered, yellow to bright yellow. Shrub 
or tree to 5 (or rarely 10 m) high. subsp. subalpina 
Selected specimens: New South Wales: Southern Tablelands: S of Big Badja Mtn, L.G. Adams 2962 
& 2963, 4 Feb 1973 (CANB, MEL, NSW); Quidong Stn, c. 18 km W of Bombala, L.G. Adams 3953, 
2 Oct 1985 (CANB, NSW); Fiery Ra„ 12 miles [19.3 km] SSW of Brindabella, B.G. Briggs NSW84579, 
25 Dec 1960 (NSW); Tinderry Mountains, 8 miles [12.8 km] E of Michelago, B.G. Briggs NSW84568, 
26 Dec 1965 (NSW); Tinderry Ra., B.G. Briggs 2644 & 2646, 24 Mar 1969 (NSW); between Bulls Head 
and Bendora, N.T. Burbidge 6416, 10 July 1959 (CANB, K, NSW, PERTH); Corang R., Braid wood, 
E. Cheel NSW8176, June 1917 (NSW); Bendora Hut, 5 miles [8 km] SW of Bulls Head Camp, 
Brindabella Ra., E.F. Constable NSW44252, 29 Apr 1958 (BRI, K, MEL, NSW, PERTH); Gudgenby to 
Naas R., A.C.T., M. Gray 5954 (CANB, HO, MEL, NSW); Sawpit Creek, [near Jindabyne, Kosciusko 
Natl Park], M. Hancock 438, Jan 1992 (CANB, NSW); N of Boboyan, Rendezvous Ck district, R.D. 
Hoogland 6435 & 6437, 23 Sep 1959 (CANB, NSW); Tuross R., c. 2 miles [3.2 km] above Tuross Falls, 
L.A.S. Johnson NSW130114, 26 Apr 1968 (NSW, PERTH); 0.5 km due NE of Wyanbene Caves Mtn 
Trig., Deua Natl Park, P.G. Kodela 119, 20 Sep 1991 (CANB, MEL, NSW); c. 21 km SSE of Captains 
Flat, Tallaganda State Forest, R.O. Makinson 852 & H. Strcimann, 13 Sep 1991 (CANB, K, L, NSW, 
US); Brindabella Rd, A.C.T., H.S. McKee 7321, 25 Sep 1960 (NSW); Boboyan Rd, c. 3 miles [4.8 km] 
S of Gudgenby Crossing, R. Pullen 2556 & 2558, 25 Jan 1961 (CANB, NSW); c. 1 mile [1.6 km] NW 
of Big Badja Mill, A.N. Rodd 662 & L.A.S. Johnson, 28 Apr 1968 (A, AD, BRI, HO, K, MEL, MO, NSW, 
NY, US); 12 km W of Condor Creek crossing on Brindabella Rd, G.M. Stewart 224 £f B. O'Shea, 
18 Oct 1984 (CANB, MEL, MO, NSW); near Lake Eucumbene, M.D. Tindale 711, 8 Oct 1972 (NSW). 
Victoria: Snowfields: 17 miles [27.4 km] S of Mt Hotham, B.G. Briggs NSW72257, 28 Dec 1964 
(NSW); Cobberas Tingaringy Natl Park, Nunniong Plateau, F.E. Davies 666, M.J. Winsbury & 
S. Donaldson, 13 Nov 1988 (CANB, MEL, NSW). Eastern Highlands: Mt Disappointment, J.S. Beard 
912, 3 Sep 1957 (NSW); 30 miles [48.2 km] E of Tallangatta, M. Mcdermott s.n., Jan 1977 (NSW). East 
Gippsland: Boundary Ck, 30 miles [48.3 km] by road N of Buchan, E.F. Constable 5344, 30 Oct 1964 
(AD, CANB, MEL, MO, NSW, PERTH); Mt Delegate, H. van Rees 084, 25 Oct 1979 (MEL, NSW). 
