887 



THE VARIABILITY OF EUCALYPTUS UNDER 

 CULTIVATION. 



Part I. 



By J. H. Maiden. 



In spite of the profusion of recent literature concerning tlie 

 limitations of species in the genus Eucalyptus, an important 

 aspect of the subject has been but little touched upon. I allude 

 to the changes which the species undergo under cultivation. 

 That variation does take place in cultivated species in Australia 

 is well known; but it is in other parts of the world — in France 

 and Algeria, in California and South Africa — that the changes 

 have been most marked and noted. In fact it will be a surprise 

 to many people how extensive is the list of new species of 

 Eucalyptus described (chiefly in France) from plants raised from 

 Australian seed. 



This paper is of a preliminary character, mainly dealing with 

 the extra-Australian species referred to. When in Paris a few 

 years ago I was, through the kindness of MM. Edmond Bureau 

 and Henri Hua, given an opportunity of studying the Eucalyptus 

 herbarium in the Museum d'Histoire Naturelle. Since my 

 return to Australia these gentlemen have added to their kindness 

 by sending to me nearly a thousand sheets of this genus, including 

 a nearly complete set of the species of M. Naudin; I am thus 

 enabled to speak with a confidence that I could not otherwise 

 assume. 



To M. Trabut, who has done excellent work with Eucalypts 

 in Algeria, I am indebted for copies of his works and specimens 

 of Eucalyptus hybrids. 



To the Director of the U.S. National Herbarium, Washington, 

 to Professor A. J. McClatchie, of Phcenix, Arizona, Mr. J. burtt 



