77 
Flooded Gam. —This name would do very well as far as distinctiveness is 
concerned, but in Australia the term lias, as a rule, got to be associated with an 
inferior grade of timber, and I am, therefore, afraid that it would never become 
sufficiently popular to supersede the term “ Blue Gum,” which is associated with 
timber of high quality. 
Aboriginal Names. —According to the late Sir William Macarthur, the 
aborigines of the Illawarra used to call the Blue Gum “ Couranga,” while those of 
Brisbane Water called the Flooded Gum “ Thurambai.” The Flooded Gum of South 
Queensland is the “ Toolur ” of the aborigines, according to Air. W. Pettigrew. It 
is the “ Mungarie ” of those of the Bichmond Biver, New South Wales. By the 
Clarence Biver blacks it used to be called “ Umbagga,” according to Mr. Charles 
Moore; and “ Warrimbarng ” by those of the Hastings Biver, according to 
Mr. Forester Brown. Air. Forester Allan gives its aboriginal name as “ Aludione ” 
in the Illawarra. 
Leaves (Oil). —Alessrs. Baker and Smith (“ Besearch on the Eucalypts ”) 
give the following information in regard to the oil of this species :—Specific gravity, 
at 15° C., G’886 to 0 8937 ; specific rotation, («) D = -f- 3714° to 39 59° (first 
fraction) ; saponification number, 28'9 to 30‘6 ; solubility in alcohol, 7 vols., 80 %, 
to 9 vols., 8 % ; constituents found, pinene, eucalyptol, valeric acid ester, amyl 
eudesmate, free alcohols. 
Fruit.— The shape of the fruit of the Blue Gum will, it is hoped, be clear 
from the drawing. As a guide it may be remarked that, as a very general rule, 
there is a narrow space between the valves and the rim of the fruit wide enough for 
one to insert the thickness of the finger-nail or a penknife blade. If this little point 
be grasped it will be found to be useful. The fruit with which that of the Blue 
Gum is most likely to be confused is the Bangalay or Bastard Mahogany 
( Eucalyptus bolryoides ), and I would suggest that persons interested gather the 
fruits of the two trees, and compare them for themselves. 
I wrote what follows in 1896, and would like the remarks to be considered 
in connection with my observations on Blue and Flooded Gum below. 
The fruits vary much in size and in the extent of protrusion (or the reverse) 
of the valves. They are sometimes angled, and, when not fully ripe, often with a 
rim. They arc sometimes shiny, and sometimes covered with a bloom. This 
glaucousness seems to be only on northern forms. 
I cannot detect any permanent difference between the fruits and foliage of 
Blue and Flooded Gum. Blue and Flooded Gum grown within a few feet of each 
other at Failford, near Forster, shows Flooded Gum in early fruit, while Blue Gum 
is only in bud (advanced) ; but perhaps this difference is only local and accidental. 
