GROUPING OF SPECIES. 87 



setting- a wind-break, Eucalyptus globulus, E. rudis, and E. viminaUs 

 would be the most satisfactory ones of the above list. One of the 

 three can be grown in most situations where a wind-break would be 

 desired. 



Useful for .shade: Eucalyptus botryoides, E. cornuta, E. corynocalyx, 

 E dm rsicolor, E. globulus, E. hemiphloia, E. leucoxylon, E mellio- 

 dora, E. polyanthema, E. robusta, E. rudis, and E. viminaUs. As 

 there are few situations in the settled portions of the Southwest where 

 one or more of the above will not grow, settlers may all have the 

 pleasure of the shades of an evergreen wherever they ma}' be located 

 in that part of the United States. 



Useful for fuel: Eucalyptus botryoides, E. coriacea, E. corynocalyx, 

 E. diversicolor, E. macrorhyncha, E melliodora, E. obliqua, E. occi- 

 dental!,?, E. polyanthema, K. resinifera, E. rostrata, E. stuartiana, and 

 E. tereticornis. 



Useful for posts, railway ties, and other underground purposes: 

 Eucalyptus botryoides, E. corymbosa, E cc/rynocalyx, E. webra, E. 

 eugen hides, E. goniocalyx, E. hemipldoia, E.longifolia, E. melliodora, 

 E. microtheca, E. paniculata, E. pilularis, E. poly anthem a, E. punc- 

 tata, E. resinifera, E robusta, E. rostrata, E. rudis, E. siderophloia, 

 E. sideroxylon, E. atua/rtiana, and E. tereticornis. 



Judging from inquiries received by the writer and from statements 

 made by farmers, there are few more important purposes that the 

 Eucalypts are likely to serve than that of furnishing fence posts. 

 From the above list one or more can be selected that will thrive in 

 most of the various situations in the Southwest, as a reference to the 

 grouping according to climatic adaptations will show. Probably the 

 most generally useful of the list for posts is the Sugar Gum {Eucalyptus 

 corynocalyx). It thrives in most situations in. the Southwest: makes a 

 fairly rapid growth: has a straight, even stem, especially when grown 

 in blocks; and furnishes material for very durable posts. The Forest 

 Red Gum (E. tereticornis) gives promise of proving nearly as useful 

 for the above purposes. 



Useful for piles: Eucalyptus citriodora, E. globulus, E. hemiphloia, 

 E. margi/nata, E. resinifera, and /:'. rostrata. 



Useful for street paving: Eucalyptus citriodora, /:'. cory7ribosa, 

 E. longifolia, /:'. j>Ilu/ </>■<*. E. resinifera, and /:'. rostrata. 



Useful for telegraph poles: Eucalyptus citriodora, E. pilularis, 

 /-.'. rostrata, and /:'. tereticornis. 



Useful for shipbuilding: Eucalyptus diversicolor, E. globulus, /:'. pilu- 

 laris, /:. rostrata, /:. siderophloia, E. sideroxylon, and /:'. tereticornis. 



Useful for vehicle making: Eucalyptus botryoides, E. citriodora, 

 /:'. cornuta, E. corynocalyx, /:'. diversicolor, E. globulus, /:'. goniocalyx, 

 /:'. hemiphloia, /.'. melliodora, E. polyanthema, and /.'. punctata. 



Useful for agricultural implements: Eucalyptus citriodora, I:, cor- 



