321 



robust habit of this tree, its chalk-like stems, and the often considerable intermingling of it with other 

 species {E. salmonopMoia, E. ocaidentalis), give the Wandoo-forests a character greatly contrasting with 

 the forests of E. marginaia and E. diversicolor on its western border. 



The varied Eucalyptus forests of the hard clay soil of the Eremsean areas have very different 

 characteristics, but a single species is rarely dominant over a considerable extent of land. Generally 

 several species compose the forest, which each take about the same part in the formation. E. gracilis and 

 its allies, E. salubris, E. salmonopMoia, E. dumosa, E. oleosa, E. uncinata, are the typical representatives 

 of this community. As stated before, the Eucalyptus flora of the clayey Eremsean area is uniform over the 

 whole of southern Australia, but the western part of the continent is distinguished by the more imposing 

 height some of the abovementioned species attain. Though the habit of the trees is varied, nearly all 

 members of this Eucalyptus vegetation incline to form an umbrella-shaped crown. 



The shrub-heaths on sandy soil also can show a number of remarkable forms in Western Australia. 

 In habit this formation is kept together by the shrubby growth, but their representatives show much 

 diversity of taste for soils. Where a strong mixture of clay gives the sand 6ome firmness, many species 

 thrive well. On such places E. eudesmioides often forms dense thickets, but where the sand becomes poorer 

 and lighter, the pan-Australian forms disappear, and leave the field for forms of the west. These are 

 wonderful forms, ornamented with beautiful coloured flowers, such as E. pyriformis and E. tetraptera, or 

 with remarkably-shaped large, glaucescent leaves, E. macrocarpa and E. tetragona. 



The few places in Western Australia where a special formation causes a special flora are also 

 distinguished by special forms of Eucalyptus, as the limestone region following along the west coast. This 

 is the home of the strong E. gomphocephala, and further north we have the peculiar E. erythrocorys, to which 

 Drummond gives the prize for beauty in the whole genus. Further, the steep mountains of the Stirling Eange 

 are remarkable for the peculiar forms of mostly low-growing Euoalypts which cover their slopes. 



Maiden, J. H. — I. " Notes on Western Australian Eucalypts," Journ. W.A. Nat. 

 Hist. Soc., Ill, 165-190 (1911). 



2. In " Report of the Interstate Forestry Conference, Perth, November, 1917 " 

 (Perth, 1918). This paper contains lists of Eucalypts — 



(a) The principal trees. 



(b) Those of inferior importance. 



(c) Those of the Nor.-West. Also a number of papers more or less referring to 



Eucalypts. 



3. The three Nor. -Wests (North-Wests) of Western Australia, viz., 



(a) Of local land administration. 



(b) From the de Grey to the Murchison (as defined by Jutson). 



(c) The Nor.-West in its wide sense, 



are defined in my paper " Notes on Acacia, No. II, Tropical Western Australia," 

 Journ. Roy. Soc, N.S.W., LI, pp. 71, 72 (1917). 



Lane-Poole, C. E. — The " Statement prepared for the British Empire Forestry 

 Conference, London, 1920," contains map-diagrams showing the distribution of the 

 following Western Australian Eucalypts : — 



E. marginata, E. diver sioolor, E. redunca var. data, E. cornuta, E. gomphocephala, 

 E. patens, E. salmonopMoia, E. calophylla, E. occidentalis var. astringens, 

 E. Jacksoni, E. Guilfoylei, E. longicomis, E. foecunda (loxophleba), 



accompanied by descriptions at pp. 8-11 and 13-17 of the forests themselves and of 

 the timber. 



