107 
" Apple tree" of Dalgety, Snowy River, sent by Mr. A. M. N. Rose. He 
informed me that this species produced manna about every tenth year. He made 
this statement to me in 1901. It resembled E. rubida manna. 
Mr. R. Greig Smith read a paper entitled "A gum (levan) Bacterium from a 
saccharine exudate of Eucalyptus Stuartiana (Proc. Linn. Soc. N.S.W., xxvii, 230, 
1902). It was supplied by Mr. A. M. N. Rose, of Dalgety. 
The exudate was in the form of a pale straw-coloured syrup, very similar in 
appearance and consistency to honey or golden syrup, and had fragments of bark and 
Eucalyptus capsules scattered throughout the mass. When dissolved in water and 
separated from woody debris, a portion contained 
Non-reducing but hydroly sable sugar* calculated to saccharose ... 1-1 grm. 
Reducing sugars 2-5 
Crude gum ... 0-8 
Three specimens of exudate (varying somewhat amongst themselves) were 
examined and they all contained a Bacterium eucalypti, n.sp. Specific characters and 
very full details are given of this new gum-forming Bacterium. 
See also E. punctata DC. 
/. E. terminalis F.v.M. See p. 115. 
m. E. viminalis Labill. 
There is no doubt that the first notice available of Australian manna refers to 
E. viminalis. 
I do not presume to say that I know the first record of Eucalyptus manna. 
Historians might hunt the matter up. Here is one dated 1808; Colonel Paterson sent 
some to Sir Joseph Banks from Port Dalrymple (Launceston). He says : 
. . . also an insect which produces very fine manna, which has been given as that medicine, 
and proves equally good. It is only found on the narrow-leaved Eucalyptus [probably E. viminalis. 
J.H.M.], where thousands of these insects resort to about the beginning of November, and continue until 
January in the winged state, when they deposit their eggs in the earth and die. I have them now in two 
stages one without wings, and the other in maturity. I now only wait to get the larva, when I shall 
send you the whole tolerably complete, with specimens of the tree, &c. The saccharine substance can be 
gathered in large quantities ; I am certain upwards of 20 Ib. might be procured from one tree. By a former 
conveyance I sent Governor Bligh a specimen of it, which I have no doubt he will take to England. 
(Historical Records of N.S.W., vi, 768.) 
My next reference is thirty-five years later. 
The White Gum (? E. virgata) [probably a slip for E. viminalis. J.H.M.] from wounds on its shoots 
and the cartilaginous margins of the leaves, produces the manna of Van Diemen's Land. It is white, 
sweet, and well flavoured, and falls (sometimes in considerable abundance) about the trees in dry weather 
in small, irregular pieces. (Bot. Mag. t. 4,036, 1843.) 
* This is probably raffinose, the sugar of Eucalyptus manna. The redlining sugars probably consist of mixture of 
levulose and melibiose. 
E 
