EUCALYPTUS PULVERULENTA, 



lenta, mediating a transit to E. Stuartiana. Indeed it was with some reluctance, that E. pnlvera- 

 lenta became at all accepted into the present work, from which all dubious species for distinct 

 iHustration have been and are to be rigorously excluded. As however , E. pulYerulenta i s the 

 only species with opposite leaves, indigenous to the colony of "Victoria, it was deemed desirable to 

 accord fdll elucidation to it. This finally narrow-leaved form of E. pulverulenta, when yet in its 

 young bushy state, ha s the leaves all broad and opposite; but they do not continue in that form, 

 eontrarily to what is noted elsewhere. Mr. Falck observed, that the bark of this Eucalypt is 

 pervaded by a peculiar somewhat terebmthiae odor, so much so as to have given rise to the local 

 name "Turpentine-tree" for this species. It flowers from October to December; the blo ssoms 

 are odorous. 



As remarked already, E. pulverulenta is distinguishable fro m E. Stuartiana only in its 

 foliage, holding the same relation to the last-mentioned congener as E. Eisdoni to E. amygdalina, 

 as E. melanophloia to E. crebra, and as E. dealbata to E. viminalis. What physical causes are 

 operating, to bring about these striking local aberrations, has as yet not been ascertained. 



The bark of E. Stuartiana and of E. pulverulenta are very much alike. 



It is unnecessary to adduce differential characters in contrast to other species, there being 

 none very close akin, unless E. vimiualis in its state E. dealbata, and this again bears only 

 resemblance to the variety with elongated narrow leaves of E. pulverulenta ; the former has 

 however all its leaves scattered and always attenuated into very conspicuous stalks, shows more 

 prominent and still more spreading and crowded veins, has the flowerstalklets more developed, 

 .the fruit-calyces more rounded at their base, and the valves longer and more pointed. 

 Specific name from the powdery greyness of the foliage. 



Explanation of AkaiiTTic Details. — 1, an nnexpanded flower, the lid lifted ; 2, longitadinal section of an 

 tmexpanded flower ; 3, some stamens in expanded position ; 4-5, front- and back-view of an anther with portion of 

 its filament ; 6, style and stigma ; 7-8, transverse and longitudinal section of a fi:ait ; 9-10, fertile and sterile seeds ; 

 — all magnified, but to various extent. 



