PART III. 



PRINCIPAL SPECIES OF ETJCALYPTS GROWN IN AMERICA. 



In discussing the following species of Eucalypts the aim has been to 

 use as few technical terms as possible. However, the species of the 

 genus Eucalyptus are so numerous (about 150), and have been known 

 to the civilized world for such a comparatively short time, that satis- 

 factory popular names have not yet been assigned to many of them. 

 Hence, it has been necessary to head the discussion of each species with 

 the scientific name, adding whenever practicable a common name. 



To be sure, the majority of species discussed here are known to 

 have names applied to them Irv the aborigines of Australia, and the 

 English colonists have assigned names to most of them. But the dif- 

 ferent native tribes, and the colonists as well, have different names 

 for the same species. For example, Eucalyptus microtheca has seven 

 known native names and six colonial ones; and E. viminal'i* and E. 

 amygdaUna are each known by nine different colonial names. To add 

 to the confusion, the same English name is applied to many different spe- 

 cies. As illustrations of this, the term " Blue Gum " is applied to twelve 

 species; the term "Flooded Gum " is applied to seven species; the term 

 "Ironbark" to eight species; the name "Red Gum"' 1 to nine species; 

 the name "Stringy-bark 1 ' to eleven species, and the name "White 

 Gum " to thirteen species. As Abbot Kinney observes in his work 

 "Eucalyptus," each district in Australia has a nomenclature of its own 

 for the Eucalypts, and thus the common names are, with few excep- 

 tions, confused and uncertain. 



As there are already over fifty different species of Eucah<pts grown in 

 America it will undoubtedly be a good many years before many of them 

 will be known popularly by well-established common names. In the 

 meantime it will be necessary to continue using the scientific names in 

 order to designate them accurately. Eucalyptus gl-obukts, on account of 

 its predominance in the Southwest, has come to be well known as the Blue 

 Gum, but at least one of the eleven other species known by this name 

 in Australia, which is also a promising species for parts of America 

 (namely. /:'. leucoxylon), is entitled on account of its general aspect to 

 be known here by this same name. If by common consent the latter 

 could come to be known as the " White Gum," in reference to the white 

 bark and wood of the tree (the specific name, Leucoxylon, meaning in 

 2771!>— No. 35—02 4- 49 



