BY R. H. CAMBAGK. 447 



Towards the summit of the range, some 4-5 miles from the 

 Caves, Eucalyptus rubida appears. The trees are of considerable 

 size with large undulate leaves, the juvenile foliage being less 

 orbicular than in the type. The same form has been noticed at 

 intervals extending northerly to Oberon and at other places in 

 high altitudes, and appears to be the result of growing at a fairly 

 high elevation (3000 ft. to 4000 ft.) with a suitable soil and a 

 fair amount of moisture. Both this species and E. viminalis 

 attain considerable dimensions at high altitudes when the condi- 

 tions of soil and moisture are suitable, nor is the feature restricted 

 to these two species. 



The Great Dividing Eange is crossed on the Taralga road at 

 about 5-6 miles from the Caves, and is approximately 3200 feet 

 above sea-level. The geological formation along this road is at 

 first limestone and then granitic, with an altered sedimentary 

 rock beyond the top of the mountain. The junction line between 

 the igneous and limestone soils is so distinct that in places, e.g., 

 in the road cutting, the greyish brown of the former is most 

 distinctly separated from the red soil of the latter, the transition 

 occupying a space of only a few inches. In less than a mile 

 from the Caves, along the Taralga road, the granitic rocks are in 

 places so decomposed that they are nothing more than sand, 

 having the general appearance of the sandy soil derived from the 

 Triassic sandstones around Sydney and on the Blue Mountains, 

 and it is therefore interesting to find that the vegetation on this 

 area is practically the same as much of that on the sandstone 

 formations referred to. It will be noted in the following list of 

 plants along this stretch of road, that many species are more 

 suggestive of sandstone than of igneous rocks, and the explana- 

 tion lies in the fact above related. The point also appeals to 

 the geologist, inasmuch as our Triassic sandstone is largely com- 

 posed of the quartz derived from some igneous rock of prior 

 o;eoloe;ical ac;e. 



Plants along the Taralga Road. 



Among the various plants distributed over a distance of seven 

 miles along the Taralga road were : — Clematis glycinoides, Hib- 



