1 78 EVCAL YPTUS. 



classification it may still be looked for in Bentham's sys- 

 tem and descriptions. The following partial list of synon- 

 yms and varieties, together with the native habitat and 

 range and vernacular names of the species may help some- 

 what in identifications. 



SYSTEMATIC POSITION AND CLASSIFICATION OF THE 

 EUCALYPTI. 



The Eucalypti belong to the order Myrtacetz, which is characterized 

 as follows: 



Trees or shrubs; leaves opposite or alternate, usually dotted; flowers 

 regular or nearly so. Calyx-tube grown to the ovary at the base or up to 

 the insertion of the stamens. Petals usually as many as calyx-lobes, 

 very much imbricate in the bud, the external one sometimes larger than 

 the others, but usually all nearly equal when expanded, sometimes all 

 concrete and falling off in a single operculum, or rarely entirely want- 

 ing. Stamens indefinite, usually numerous, inserted in one or several 

 rows on a disk; filaments free or rarely united into a ring or tube at the 

 base, or into as many bundles as there are calyx-lobes; anthers 2-celled, 

 versatile or attached by the base, the cells opening in longitudinal slits, 

 or rarely in terminal pores. Ovary enclosed in the calyx-tube, some- 

 times i-celled, with a placenta attached to the base or adnate to one side, 

 more frequently 2 or more celled, with the placentas in the inner angle 

 of each cell, very rarely i-celled with 2 purietal placentas. Style simple, 

 with a small, capitate, peltate, or lobed stigma. Ovules 2 or more to 

 each placenta, in 2 or more rows, or very rarely solitary. Fruit adnate 

 to the calyx-tube, capsular and opening at the summit in as many valves 

 as cells, or Indihescent, dry, and i-seeded,or succulent and indihescent. 

 Perfect seeds usually very few or solitary in each cell, even when the 

 ovules are numerous, or rarely numerous and perfect. 



The order is divided into four tribes, the Eucalypti falling into the 

 tribe Leptospermae (meaning "small seeds"), the chief characteristic of 

 which is its 2 to 5-celled ovary opening at the summit by as many valves 

 as there are cells. Of the genera belonging to this tribe, the gemis Euca- 

 lyptus is by far the largest, about 150 species being known. 



CHARACTERISTICS OF THE GENUS EUCALYPTUS 



L'HERITIER. 



Calyx of firm consistence, separated into a lower persistent portion 

 and a deciduous lid. Petals, none, unless represented in some few 

 species by an inner membrane. Stamens very numerous, inserted close 

 to the edge of the calyx-tube in several rows, all fertile or some of the 



