DICHOTOMOUS KEY TO THE EUCALYPTUS. 7 



No No. 



Leaves large, falcate ; umbels generally enclosed in 

 large bracts while in bud, E. virgata. 



(Although I believe that Baron von Mueller was correct in 

 including this also as a variety in E. stricta, yet I have 

 kept it distinct as the appearance of the extreme forms 

 is so very different. Both seem confined to the south- 

 eastern parts of New South Wales. Bentham had also 

 in this case a mixture before him, viz., a few specimens 

 of the genuine E. virgata, but mostly those of a large tree 

 allied to E. haemastoma, afterwards described by F. v. 

 Mueller as E. Sieberiana. E. obtusiflora seems to have 

 been described by De Candolle from imperfect material ; 

 an original leaf and a sketch of the specimen point, per- 

 haps, to E. haemastoma, but a second leaf is quite 

 different. The name had better be discarded.) 



60. Leaves nearly straight, very shining, E. fcecunda. 



(Includes E. loxophleba as a variety.) 



Leaves falcate, inequilateral, dull green or hardly 



shining ... ... ... ... ... ... 61 



61. Fruits about J inch in diameter, E. patens. 



Fruits not exceeding J inch ... ... ... ... 62 



62. Fruit generally 5 or 6 celled, E. Bosistoana. 



Fruit mostly 4-celled ... ... 63 



63. Fruit truncate-ovate, E. odorata. 

 Fruit truncate-globular, E. melliodora. 



(When in flower E. melliodora is readily distinguished by 

 the outer stamens being sterile. In Mueller's Eucalypto- 

 graphia the anthers are not correctly drawn ; they open 

 by terminal pores.) 



64. Flowers generally paniculated ... ... ... ... 65 



Flowers mostly in simple umbels ... ... ... 74 



65. Leaves distinctly paler beneath, E. Raveretiana. 



Leaves of equal colour on both sides ... ... ..; 66 



66. Leaves opposite... ... ... ... ... ... 67 



Leaves scattered . . ... ... ... ... 68 



67. Fruit truncate-ovate, about 4 lines long (a box-tree) 



E. pruinosa. 



Fruit truncate-globular, 2 or 3 lines long (an ironbark 

 tree), E. melanophloia. 



68. Leaves ovate, or orbicular ... ... ... ... 69* 



Leaves lanceolate ... ... ... ... .., 70 



69. Calyx about 3 lines in diameter, E. oligantha. 

 Calyx under 2 lines in diameter, E. populifolia. 



70. Operculum about 3 lines long, E. siderophloia. 

 Operculum not exceeding 2 lines 71 



