THE TIMBERS OF COMMERCE 



| inch thick, soft : the outer, hard, darker, striped in section like 

 the wood. 



Uses, etc. " Fence-posts, the best charcoal in Australia" (80). 

 " Very dense, resists white ants, and in the ground seems to last 

 for ever " (17).' " Small dimensions " (61). Planes badly, being 

 cross-grained : a handsome wood. Easily confused with Myall- 

 wood and several other aromatic Australian Acacias. 



Authorities. K. F. von Mueller (80), p. 16. J. Ednie-Brown 

 (17), p. 19. Laslett (61), p. 431. 



Colour. Very dark-brown or purplish-brown streaked with 

 black. Sap-wood, sharply defined from the heart, |-^ inch 

 thick, whitish. 



Pores. On the limit of vision, can be seen by reflection . 

 size 3-4, considerable variation, diminishing regularly, the 

 Autumn zone poor in pores, sometimes in short oblique lines : 

 mostly single, but many subdivided pairs, threes and fours in 

 egg-shaped groups separated from each other by rays : moder- 

 ately numerous, 20-40 per sq. mm. 



Rays. Need lens or rather micro., size 5-7, uniform : equi- 

 distant, less than a pore-width apart : avoiding the pores, rarely 

 straight, weak, thin, golden threads : many, 5-7 per mm. 

 coarse-celled, yet denser than the ground. 



Rings. Clear, though not prominent : the boundary frequently 

 a fine, white line equal to size 4 (ray-scale), or a line of contrast 

 and a zone poor in pores and a considerable and striking difference 

 in the size of the Spring and Autumn pores : contour undulating. 



Soft-tissue. Abundant in lop-sided borders to the pores, often 

 extending laterally to oblique or concentric scraps in the Autumn 

 zone. 



Pith. ? 



Radial Section. The pores are obscure, fine scratches : the 

 rays minute, dull, black, inconspicuous lines : the rings are not 

 traceable, but the light and dark pigmented bands are promi- 

 nent : the soft-tissue needs the lens, but is abundant as light- 

 brown borders and tails to the pores. 



Type specimen authenticated by the Forest Officer to the 

 Government of Western Australia. 



No. 68. MYALL. Acacia pendula. A. Cunn. 

 Plate V. Fig. 43. 

 Natural Order. Leguminoseas. 



Alternative Names. Weeping Myall in Queensland (5). Boree 

 in N.S. Wales. Violet -wood in England (57). 



Sources of Supply. South Queensland. New South Wales. 

 Victoria. 



78 



