202 BOTANY OF THE INTERIOR OF NEW SOUTH WALES, 



prefers a sedimentary formation, and the latter is strongly repre- 

 sented on an igneous, though they are not absolutely restricted 

 to either. I have never seen E. Morrisii growing east of a line 

 joining Girilambone, Nymagee, and Euabalong. 



A few trees of Acacia irnplexa, Benth., (Hickory) were found 

 on the top of the igneous hill. This is the most north-westerly 

 locality in which I have found this species. It was next seen at 

 a point about 80 miles south-easterly from Nymagee, towards 

 Trundle, and here again it was on the top of a hill composed of 

 igneous rock, a very fine granite, there being not more than 

 half-a-dozen trees. The question suggested by the position of 

 these isolated representatives of a species which is known tO' 

 extend southerly through New South Wales and Victoria, is 

 whether these trees have once been more plentiful in the 

 north-west and have been reduced by geological and climatic 

 agencies, or whether they are only now finding their way out in 

 that direction. Judging from the surroundings I incline to the 

 former suggestion, but the solution of the question seems full of 

 interest to both botanists and geologists. 



Casuarina quadrivalvis (Mountain or She Oak), with cones 2|- 

 inches long, was also noticed on the igneous hills. Also Exocarpus 

 Gupres si/or mis, LabilL, (Native Cherry), and now seen for the first 

 time in coming from Bourke. Other trees growing around were 

 Eucalyptus sideroxylon and Acacia doratoxylon. Tecoma australis 

 (Bignonia) was found still flowering early in June. The aboriginal 

 name for this climber is Geewong. 



From Nymagee to Wirlong Copper Mine is about 15 miles 

 south-westerlj'-, and near the road the following trees and shrubs 

 were noticed : — Callitris robusta, Hakea leucoptera, Heterodendron 

 olecefolium, Apophyllum anotnalum, Capparis Mitchelli, Geijera 

 parmflora, Cassia ereinop)hila, Dodoncea sp., Berlya Curininghamii 

 (Broom Bush), Ftisanus acuminatus, Sterculia diver sifoliay 

 Eremophila Mitchelli, E. longifolia, and Eriostemon difformis, A. 

 Cunn., a shrub with short leaves and pretty white terminal 

 flowers. Only a few flowers were found in June, but the plant 

 is in full bloom in August and September, and is then a most 



