BY R. H. CAMBAGE. 553 



Its occurrence on this latter formation denotes the presence of 

 sand in the vicinity. 



E. quadrangulata, E. Boshtoann, and E. goniocalyx are 

 growing together on the shale-formation about a quarter of a 

 mile on the Camden side of The Oaks. The same association 

 has been noticed at West Dapto ; while at Milton, the first 

 two are found on the igneous formation, and the latter occurs 

 in the adjacent mountains of Permo-Carboniferous forma- 

 tion.* 



E . Bosisfoana might be referred to as the coastal analogue 

 of E. meUiodora A. Cunn., the western Yellow Box, though 

 the inner bark of the former is white instead of yellow, besides 

 other differences. In the outer bark, the two trees resemble 

 one another in the forest ; but although the latter has a very 

 wide range, chiefly in the western areas, the former seems con- 

 fined to the coastal slopes, and is not regarded as a common 

 box-tree even there. Near Marulan, the two species occur 

 together, on basaltic formation. 



The only trees of E. Macarthuri noticed, were distributed 

 along the banks of Werriberri Creek, just beyond The Oaks, 

 and in the morning light in June, the foliage was conspicu- 

 ous through having a faintly bluish tint. This species is 

 usually known as Woollybutt in the Moss Vale district, from 

 the nature of the bark ; but the particular trees under discus 

 sion have scarcely any of the woolly fibre, being fairly smooth, 

 though the bark is somewhat hard and flaky near the base. 

 This is the most northern point known to me for the species. 

 (For previous remarks on this species see these Proceedings 

 for 1906, p. 434.) 



E . piliddris, which produces the well-known and valuable 

 Blackbutt timber of commerce, was seen only just beyond The 

 Oaks, where the shale occurs as a thin coating over the sand- 

 stone, and at an altitude of from 1000 to 1100 feet. Although 



* For previous remarks on E. qiiadravgalata, see these Pioceeflin{»s, 

 1906, p. 437. 



