Ill 



It is also known as '* Manna Gum," and it is perhaps the principal Bpeeies of 

 Eucalyptus yielding that substance. 



In E. Gunnii we have a sweetish sap, and the present species is an abundant 

 (if not the most abundant) yielder of an inspissated sap known as Manna. This will be 

 referred to under a synonym (below, page 112), E. mannifera A. Cunn., of the present 

 species, and I will reserve a fuller account of the Manna until dealing with E. ntbida 

 in my " Forest Flora of New South Wales." 



It was Manna of this species that I supplied to Dr. F. W. Passmore for his 

 exhaustive paper *' The carbohydrates of Manna from E. Gunnii Hook., and of 

 Eucalyptus honey " (Pharrn. Journ. (3) xxi, 717). 



SYNONYMS. 



1. E. granulans Sieb. Herb, (quoted by Bentham and also by Mueller). 



2. E. mannifera A. Cunn. 



3. E. mannifera Mudie. Doubtless Mudie copied his Latin description from 



A. Cunn. 



4. E. Gunnii Miq. (Ned. Kruidk. Arch, iv, 126). 



5. E. viminalis Labill., var. mieroearpa F.v.M. (op. cit., p. 125). 



6. E. sacehariflua F.v.M., var. mieroearpa (?) (Herb. Mueller). 



7. E. fabrorum Herb. Behr. non Schlecht. (partim). 



8. E. viminalis Benth. non Labill. var. (B.F1. iii, 240) partim. 



9. E. viminalis Labill., var. b., Howitt (Trans. Roy. Soc. Vic. ii, 97 [1890]). 



10. E. Gunnii Hook, f., var. rubida Maiden. Proc.Linn. Soc. N.S.W. xxvi, 577 (1901). 



I have traced the intricate synonymy of E. rubida, as well as I could. It is not 

 altogether satisfactory. Original descriptions are sometimes missing, and authenticated 

 material is not always available. 



1. E. granulans Sieb. 



Bentham (B.F1. iii, 240) refers this to E. viminalis. No description of it was 

 ever published (Mueller, in Eacalyptographia under E. viminalis). 



A specimen in Herb. Melb. was collected by Mueller in 1853 at Fifteen-mile Creek, 

 South Australia, and labelled by him " E. granulans Sieb., E. viminalis Labill., var. 

 granulans F.v.M." This specimen is in bud only (in threes) and is E. rubida. I have 

 not seen an original of Sieber's. 



