710 NOTES ON THE NATIVE FLORA OF N. S. AVALES, X , 



biiibilla at 5,100 feet and on Bimberi at 6,200 feet, some inter- 

 esting features are brought out. On Tidbinbilla, the Families 

 with most representatives were Myrtacete and Leguminosa?, with 

 four species each, while Compositjc had three species. Curiously 

 no species whatever uf Leguminosjc was noticed on the summit 

 of Bimberi, while Myrlacea^ had three, but Compositai had 

 eleven. 



Before conclusive deductions could be drawn from a record 

 such as this, it would be desiral)le to have a more systematic 

 examination carried out than time permitted me to make, and 

 over a greater number of levels. It is not remarkable, however, 

 that this limited record shows that the Composita\ which are 

 considered to be the largest Family among flowering plants, should 

 be the most numerous at the higher levels, for they are known 

 to be able to resist the cold. On the other hand, masses oi a 

 few species of Composit«e may be seen on the hot western plains 

 of this State, in places forming the dominant vegetation. 



In coiniection with distribution, it is of interest to make a 

 comparison with Tasmania. There the Family Composite pre- 

 dominates, and contains more species than Leguminoste and 

 Myrtaceie combined, the figures being approximately — Compositfe 

 110, Leguminosie 60, and Myrtaceie 40* 



From the list of plants collected by me within the Federal 

 Capital Territory, the Families, according to numbers of species, 

 are arranged in the following se([uence — Leguminoste 13 species, 

 Compositte 42, and Myrtaceie ol. These figures maybe modified 

 by further discoveries, and the first two Families may even 

 change places. 



The genera are represented in the following order : Eucalyptus 

 (Myrtaceiti) 19 species. Acacia (Leguminosa?) 15, Juncus (Jun- 

 cacete) 10, and Helichrysum (Compositie) 8. 



Out of 27 species noticed on the summit of Tidbinbilla, at 

 5,100 feet, 15 of these, or 55%, occur in Tasmania; while on 

 Bimberi, at 6,200 feet, 22 out of 30 species, or 73%, are found 

 in Tasmania. 



* "The Tasinanian Flora," by Leonard Rodway, C.M.G., (1903). 



