EUCALYPTUS SIDEROPHLOIA. 



E. Bowmanii is chiefly different from E. siderophloia in less shining leaves with ahout equal 

 numbers of stomata on each side, mostly solitary umbels on a broadly compressed stalk, absence 

 of stalklets, the lid not long-pointed, the filaments while in bud more twisted and possibly also in 

 bark and fruit. The tree from Mount EUiott, referred to by Bentham under E. Bowmanii, belongs 

 to E. drepanophylla. 



E. trachyphloia, placed by Bentham between E. siderophloia and E. crebra, is much nearer 

 allied to E. terminalis and E. dichromophloia (as shown in the fragm. phytogr. Austr. xi. 43-44), 

 along which species it was placed already iu the Journal of the Proceedings of the Linnean Society 

 iii. 90. E. pilularis is distiuguished from E. siderophloia already by the sectional characteristic 

 of Eenantherre. 



E. fibrosa (F. v. M., in the Journal of the Linnean Society iii. 87) seems to be a variety of 

 E. siderophloia with longer lid, which resembles that of E. tereticornis. Although it was 

 published already in 1858, but only from specimens in flowerbud, its specific designation must 

 give way to one so well chosen as that of E. siderophloia, especially as the bark now proves far 

 less fibrous than that of the real Stringybark-trees. 



The Eev. Dr. "WooUs observes, that the Botany-Bay Kino is more extensively obtained from 

 E. siderophloia than from E. resinifera, which (as the specific name implies) is generally regarded 

 as the main or even sole source of that drug. Indeed Allan Cunningham and some other observers 

 gave to E. siderophloia the name of E. resinifera. Mr. C. Moore (Eeports of the Intercolonial 

 Exhibition of 1870 at Sydney, p. 655) remarks, that the timber is of the highest reputation for 

 strength and durability, and much used for large beams, dray-poles, railway sleepers and other 

 purposes, where great strength is required ; but its extreme hardness renders this wood difficult 

 to work ; it is light-colored and heavy ; for spokes preference is here given to this over almost 

 any other kind of wood, but the natural supply of it has become much exhausted. 



ExpLAXATiON OF AjTALTTic DETAILS. — 1, Upper part of an unexpanded flower, the lid lifted ; 2, flowerbud, 

 showing the almost straight stamens with many of the anthers unconcealed ; 3, some stamens in situ ; 4 and 5, front- 

 aud back-Tiew of an anther, with part of the filament ; 6, style and stigma ; 7, longitudinal section of fruit ; 8 and 9, 

 transverse sections of fruit ; 10 and 11, fertile and sterile seeds ; 12, a panicle of smaller fruits ; 13, portion of a leaf; 

 all magnified, but to various extent. 



