196 R. T. BAKER AND H. G. SMITH. 
the genus Eucalyptus. In White’s Journal of a Voyage to New 
South Wales, 1788, p. 226, the oil is thus referred to:—“ The 
name of Peppermint tree has been given to this plant by Mr. 
White on account of the very great resemblance between the 
essential oil drawn from its leaves and that obtained from the 
Peppermint (Mentha piperita) which grows in England. This 
oil was found by Mr. White to be much more efficacious in remov- 
ing all cholicky complaints than that of the English peppermint, 
which he attributes to its being less pungent and more aromatic. 
A quart of the oil has been sent by him to Mr. Wilson.” 
(6) Borany or £. piperita. 
This species as above stated, was first described by Dr. Smith 
in White’s Voy. N.S.W., 226, 1788, and is also referred to again 
in transactions of the Linnean Society, 111., 286; F. v. Mueller’s 
Frag. Ph. Aust., 1., 64 and 173; DC. Prod., 217 (Z. ?acervula, 
Sieb.); Eucalyptographia, F.v.M. Dec. 111. In the last named 
work neither the fruits nor the seedling leaves are quite correctly 
delineated. There is another species (Z. amygdalina, Labill.) 
which is widely distributed over the eastern districts of this 
rae and is also known under the name of “ Peppermint,” we 
lvisable to point out some of the characteristics 
of the species under consideration. 
In the Sydney district it is a tall tree, with a somewhat fibrous 
bark on the trunk and larger branches, but on the dividing range 
and other localities only the trunk is covered, whilst the larger 
and ultimate branches are quite smooth. The leaves on the seed- 
ling, unlike those of #. amygdalina, are alternate. 
Like £. amygdalina it belongs to the group having reniform 
anthers, but its chief points of difference from that species are in 
the seedling and sucker foliage, and the shape of the fruits, which 
are almost spherical in the type, but sometimes contracted near 
the orifice giving it an urn-shaped conformation, whilst in the 
mountain form they are quite elongated. They measure from 
two to four lines in diameter, the pedicel varying in length from 
one to three lines. The orifice is thin edged, a distinctive character 
