147 
“ River White Gum ” is as good as any. I have known it also called “Ribbon 
Gum ” and also “ Narrow-leaved Peppermint,” but both these names are more 
generally applied to other species. 
Aboriginal Names. —“ Kayer-ro ” of the Camden, N.S.W., aborigines, 
according to the late Sir William Macarthur. The “Wang-ngara” of the aborigines 
of Gippsland (Howitt), the meaning of which has already been explained. 
Synonym. — E. amygdalina , Lab., var. radiata, Benth. (B.F1. iii, 203), in 
part, but not E. radiata, Sieb. 
Leaves. —Messrs. Baker and Smith, under the name E . radiata, have 
examined the oil of this species, with the following result:— 
Species. 
W hence 
collected for 
Oil. 
Specific 
Gravity at 
15° 6. 
Specific 
Rotation 
[a] 
Saponifica¬ 
tion 
Number. 
Solubility 
in 
Alcohol. 
Constituents found. 
radiata 
Wingello, 
N.S.W., and 
Monga, 
N.S.W. 
0-8695 
to 
0-8747 
— 74-48° 
to 
— 89-4° 
2-8 to 
4-37 
Insoluble ... 
Phellandrene, pinene, 
eucalyptol, pepper¬ 
mint ketone. 
Bark. —“ The inner bark used for tying grafts and other similar common 
purposes ” (the late Sir William Macarthur). The comparatively tough nature of 
the inner bark was known to the aborigines of Gippsland, hence their name for it, 
as already explained. 
Timber. —White, fissile, rather tough when freshly cut, but afterwards of 
inferior strength. It is easily worked, but is not durable on exposure. 
Size. —Up to 3 feet in diameter, with a height of, say, 150 feet, but usually 
much smaller in size. 
Habitat. —Its favourite habitat is on the sides of gullies, or on the steep 
banks of rivers, often some distance from the bed of the river or creek, but usually 
on a well-drained slope leading to a watercourse. It sometimes occurs on flats. The 
late Sir William Macarthur, who first drew attention to it, believed it to be “ found 
only on the immediate sandy banks of rivers.” 
It extends from Gippsland along the coast range of New South Wales to 
between the Hawkesbury River and Singleton. As it is a species not very well 
known at present, I give some localities for it represented in the National Herbarium, 
Sydney. 
Victoria. 
Boggy Creek and Tambo River, Gippsland (A. W. Howitt) ; Darlimurla, S. 
Gippsland (correspondent of IT. Deane). “Flourishes on poor fiats; stunted in 
appearance.” 
