EUCALYPTUS GLOBULUS. 



depressed rim ; besides the seeds of the two are visibly different, those of E. alpina being sharply 

 angular, more shining and perceptibly wrinkled-streaked, while most of the sterile seeds are far 

 less narrow ; thus fertile seeds can be easily sifted from sterile seeds of E. globulus, whereas the 

 separation of them in E. alpina would by the sifting process be as difficult as in E. obliqua, 

 E. macrorrhyncha and many other species ; furthermore it will endure such severe frosts, as at 

 once would prove detrimental to E. globulus. The seedlings (and indeed also the yoimg shoots 

 from stumps of stems or their charred remnants) find in form and coloration a repetition in 

 E. tetragona, the whole foliage of which resembles greatly that of the seedlings or young adven- 

 titious shoots of E. globulus. 



Scarcely any doubt exists, that E. glauca (De Candolle, prodromus iii. 221), to which on 

 De Candolle's authority also E. pulverulenta (Link, enumeratio plantarum horti botanici Bero- 

 linensis ii. 31) and E. perfoliata (Noisette in Steudel's nomenclator botanicus, editio prima, 1821) 

 belong, represents the young state of E. globulus, as under the above name plants were cultivated 

 on the continent of Europe many years ago, which, though they had not flowered then, accorded 

 in every respect with the early state of E. globulus, when covered all over with a bluish-white 

 powdery film, the latter occurring likewise on the branchlets and calyces of the advanced tree and 

 giving rise to the somewhat remarkable vernacular name. The author saw such seedlings in the 

 conservatories of the botanic garden of Kiel in 1846, and his university-friend, the Hon. F. 

 Krichauff of Adelaide, who generously presented his whole large collection of dried plants to the 

 writer, preserved in 1847 also in the botanic garden of Berlin specimens of E. glauca, which in 

 no respect can be separated from the seedling-state of E. globulus, and bear besides resemblance 

 only, as above remarked, to the then far less accessible Eucalyjptus (Eudesmia) tetragona. But 

 the continued marvellous rapidity of growth of E. globulus, its sanitary importance and the value 

 oT"its hardwood^imber^wereThen in Middle^ European conservatories not at all recognized, and it 

 was only in 1852, when I passed through forests of Eucalyptus globulus in Victoria, that I became 

 fully aware of the unparalleled forestral importance of the Blue Gum-tree, and obtained full 

 information on its great utilitarian value, although I received in Adelaide flowering and fruiting 

 branches as early as 1848 from Tasmania. 



In the early part of 1853 the author of this work gathered seeds of E. globulus on the base 

 of Mount BuUer, where the tree is frequent ; seeds from this locality were transmitted as important 

 to European botanic gardens in the course of that year, and probably from these sendings the 

 first plants arose in Algeria, where now E. globulus is by far the predominant tree. Professor 

 Planchon, who wrote a most able memoir on this tree (in the Revue Deux-mondes 1875) assures 

 us, that E. globulus was raised already during 1854 in Algeria from seeds obtained from the 

 Jardin des Plantes of Paris, and the Montpellier Savant saw flowers in Algeria during his visit 

 in 1863 on trees imder the care of Mons. Hardy. Some seeds may have found their way to 

 Europe already much earlier from Hobarton. 



Monsieur Prosper Eamel had the fortunate opportunity, to witness the quick growth of this 

 Eucalyptus in the Melbourne botanic garden from 1855 to 1857, though the occasion did never 

 arise to this high-minded gentleman, to notice the tree in its forest-haunts ; only thus he became 

 aware of its quite incalculable value for " reboisement " in countries around the Mediterranean 

 Sea, and to him the merit is due of having, constantly encouraged and advised by myself, on his 

 return to France in 1858 pushed enthusiastically and perseveringly the culture of Eucalyptus 

 globulus on a forestral scale, for which purpose the seeds were largely supplied by myself ; for 

 although the species was cultivated in a few places of South-Europe and perhaps even in Algeria 



