224 A CONTRIBUTION TO, ETC. 



likely, however, that the number of species for this colony will 

 be much increased, for on referring to the Catalogue of woods, 

 forwarded to the Exhibition in 1854, it appears that only 49 

 specimens of Eucalyptus-wood were collected in the Southern 

 part of Australia, and of these, several are merely varieties of 

 species differing apparently in the character of their grain, and 

 in their specific gravity, according to the age of the tree, and the 

 nature of the soil on which it grew. Thus, for instance, nine 

 kinds of " Iron Bark" are mentioned, whereas in all probability, 

 these were procured from three species prevailing in this 

 colony. The reduction, however, occasioned by this view of the 

 " Iron Barks" and other forest trees, is compensated by the addi- 

 tion of those species, which are merely of a shrubby character, 

 and did not furnish any wood for the Exhibition, such for instance 

 as E. stricta, which forms brushes on the more elevated parts of 

 the Blue Mountains, and others which constitute what is termed 

 the " Mallee Scrub" of the interior. 



The species indigenous in New South Wales may be conve- 

 niently arranged, according to the plan indicated by Dr. P. 

 Mueller, under the following groups : (1) such as have the bark 

 for the most part smooth, of which section, " White," " Blue," 

 " Grrey," and " Spotted Grum," may be regarded as types ; (2) 

 half-barked trees, such as " Box" and " Blackbut," which have 

 the bark fibrous and persistent on the lower part of the trunk, 

 whilst the upper part and the branches are smooth ; (3) wrinkled 

 or furro\ved-bark trees, of which " Bloodwood" and some of the 

 " Mahoganies" are types. These have the bark persistent on the 

 trunk and branches ; (4) trees of the " Stringy Bark" kind, 

 such as have the bark for the most part fibrous and persistent on 

 the trunk and branches ; and (5) " Iron-Barks," which have 

 the bark hard, solid, and deeply furrowed on the trunk, and 

 generally on the branches. 



Of the smooth barked series, we have about twenty species, 

 viz., (1) E. stellulata; (2) E. coriacea ; (3) E. radiata, (4) E. 

 eugenioides ; (5) E. gracilis\ (6) E. Jicemastoma ; (7) E. unci- 

 nata; (8) E. albens ; (9) E. yoniocalyx', (10) E. dumosa ; (11) 

 E. inci assata ; (12) E. dealbata; (13) E. viminalis ; (14) E. 

 rostraia ; (15) E. tereticornis ; (16) E. punctata ; (17) E, 

 Stuartiana ; (IS) E. saligna, and (19) E. maculata. 



