of the- Natural Order of Mjrti. 283 



There is not a more natural genus in the whole Linnosan fyftem 

 than this. It is clearly characterized at firfl fight by the Angular 

 operculum which clofes the calyx, and covers up the (lamina and 

 flyle till they arrive at maturity. In this refpecT: it agrees with the 

 Calyptranthes of Dr. Swartz, but differs from that genus in having 

 a capfule, not a berry. 



All the fpecies of Eucalyptus hitherto difcovered come from New 

 Holland. Gaertner being unacquainted with the peculiar flruclure 

 of their flower, confounded fome of them with Metrofideros. They 

 agree fo much with one another in habit and leaves, as to be im- 

 poflible to discriminate, except by their inflorefcence, and the form 

 of their opcrcula. I have already characterized fome of them in the 

 Botany of New Holland, p. 39 to 44; but having fince become ac- 

 quainted with many more, it is necefTary to revife the whole, and 

 contrail: their fpecific characters. 



The leaves of all are entire, lanceolate, rarely ovate, more or lefs 

 oblique or unequal at the bafe 5 flowers either in umbels or caphula ; 

 the former of which are either folitary or panicled, lateral or ter- 

 minal ; the latter always folitary and lateral. The genus is conve- 

 niently divided into two feclions, in one of which the cover of the 

 flower is conical, in the other hemifpherical. 



* 



Operculo conico. 



I. Eucalyptus robujla, operculo conico medio conftrifto 

 calyce latiori, umbellis lateralibus terminalibufque, foliis 

 ovatis. 

 E. robufta. BoU of New Holland, 40. /. 13. 



This is called the brown gum tree, or New Holland Mahogany, 

 its wood being red, hard and heavy, in fome degree anfwering the 



O o 2 purpofes 



