EUCALYPTUS UNCINATA. 



belongs to the section Parallelantherse, not Micrantherse. The differences of E. micranthera are 

 less obvious, consisting in somewhat larger undotted leaves with the circumferential vein distant 

 from the edge, lid shorter than the tube of the calyx, which latter is also proportionately broader, 

 in thicker filaments, the openings of the anthers extending further downward, stout style and 

 somewhat larger fruit ; the filaments are in a similar way very straight except the single curvature 

 about their middle. E. decurva attains a greater height, has the leaves longer stalked, darker 

 green and not conspicuously dotted, nor the circumferential vein so near to the margin of the leaf, 

 but the closely reticular veinlets very visible, longer more slender and mostly decurved flower- 

 stalks, the lid much shorter than the tube of the calyx, the filaments not so fine, anthers evidently 

 longer than broad opening by longitudinal fissures, the fruits more contracted at the mouth and 

 the valves deeper sunk. 



In regard to technical importance of E. uncinata it may be mentioned, that the volatile 

 Mallee-oil, usually ascribed to E. oleosa, is in aU probability partly derived from E. uncinata. 



Explanation op Analytic Details. — 1, an unexpanded flower, the lid lifted ; 2, longitudinal section of an 

 unexpanded flower ; 3, some stamens in situ ; 4, 5 and 6, back-, front- and side-riew of an anther with portion of 

 its filament ; 7, style with stigma ; 8 and 9, transverse and longitudinal section of fruit ; 10 and 11, sterile and 

 fertile seeds ; 12, portion of a leaf; all magnified but to various extent. 



