BY THE REV. DR. WOOLLS, D.D., F.L.S., ETC. 451 



common on the Western variety. Baron Mueller mentions in the 

 fifth Decade of his Eucahjptograpliia, "that the E,evd. Canon 

 King noticed melitose-manna to a small extent on the leaves of 

 E, corymlosa, when pierced by a phyllophagous beetle fAno- 

 plognatJms cereusj.''^ The same substance has also been found on 

 E. pwictata near Parramatta. Mr. Bentham proposed to unite 

 the Camden Woolly Butt with^. viminalis, but the former differs 

 in having fibrous bark on the butt, and leaves occasionally 

 opposite, especially on the young branches. 



5. E. tereticornis, (Sm.), which, in different parts, has the names 

 of *'Grey," "Blue," or " Eed Gum," and sometimes '• Bastard 

 Box," is one of the common forest trees on this side of the 

 Dividing Range. It is also subject to great variation in the 

 foliage, the size of the flowers and fruit, and the quality of the 

 wood. The typical number of the florets is seven in each umbel 

 and the operculum is generally much longer than the calyx ; but 

 in damp situations, the florets are frequently more pointed. This 

 may be regarded as the most variable species near Sydney. Mr. 

 Bentham reckons three varieties, viz. latifolia, Irachycortjs, and 

 Irevifolia, founded principally on the shape of the leaves and the 

 opercula ; but as these organs are liable to great differences 

 arising probably from local causes, the varieties might be much 

 extended. There is, however, very little difficulty in identifying 

 the species, for whilst it is distinguished from some of its 

 congeners by the shape of its anthers, it is separated from other 

 allied species by the configuration of the fruit. In a dry state, 

 it is difficult to distinguish the flower-buds from those of the 

 large-leaved Iron Bark and the Red Mahogany, but as the bark 

 of the three species is quite different, no one who has an 

 opportunity of examining the trees in a living state could mistake 

 the one for the other. This tree, which sometimes rises to 100 

 feet and upwards, affords useful timber for rails and posts, fire- 

 wood, and rough buildings. 



