EUCALYPTUS COEYNOCALYX. 



E. ochroiDliloia, E. salmonopliloia and perhaps E. terminalis. Although E. rostrata is also able 

 to bear the extremes of dry heat, and is for the bulk of its most durable timber far superior 

 to any of the above named other desert-trees, yet it will not thrive away from places, where in 

 clayey subsoil always some humidity exists ; hence it occurs only in oases or lines watercourses, 

 though their beds may remain exsiccated for lengthened periods. 



Among the Eucalypts of the interior of Northern Australia may be some, also fit to cope 

 with dry excessive heat of any desert-clime ; but most of them are not attaining tall stems, and 

 we remained also hitherto almost unacquainted with the particularities of their timber in reference 

 to technic applications ; but for fuel every one of them would be useful. 



Explanation of Analytic Details. — 1, unexpanded flowers of natural size ; 2, one of the same cut longi- 

 tudinally ; 3 and 4, front- and back-view of an anther with filament ; 5, style and stigma ; 6, longitudinal section of 

 a fruit ; 7, transverse section of the same ; 8 and 9, sterile and fertile seeds ; 10, embryo ; 11, the same, unfolded ; 

 12, section of leaf ; 2-12 variously magnified. 



