of the Natural Order of Mjrti, ^583 



There is not a more natural genus iu the whole Linnsean fyftein 

 than this. It is clearly charadlerized at firfl: fight by the fingular 

 operculum which clofes the calyx, and covers up the ftamina and 

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

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

 a capfule, not a berry. 



All the fpecies of Eucalyptus hitherto difcovered come from New 

 Holland. Gaeitner being unacquainted with the peculiar ftru6lure 

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

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

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

 oi th.t\v opercula. I have already chara£terized fome of them in the 

 Botatjy of New Holhmd, p. 39 to 44 ; but having fince become ac- 

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

 contraft their fpecific charaders. 



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

 oblique or unequal at the bafe ; flowers either in umbels or capitula ; 

 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 feftions, in one of which the cover of the 

 flower is conical, in the other hemifpherical. 



* Operculo con'tco, 



I. Eucalyptus robtijla, operculo conico me^lio conftridlo 

 calyce latiori, umbellis lateralibus terminalibufque, foliis 

 ovatis. 

 E. robufla. Bot. of New Holland^ /^o. i. i^. 



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 



