344 PROCEEDINGS OF SECTION D. 
@N EUCALYPTUS CORDATA, Lasiitu., AND 
ITS COGNATE SPECIES. 
By R. T. Baker, F.L.S., Curator and Economic Botanist, 
Technological Museum, Sydney, New South Wales. 
THE species which form the subject of this paper are— 
(1) £. cordata, Labill., Tasmania, 
(2) #. pulverwenta, Sims, New South Wales. 
(3) £. cmerea, ¥.v.M., New South Wales. 
(4) #. Stuartiana var. cordata, R.T.B. et H.G.S8., Vie- 
toria, described in 1806, 1819, 1860-1, 1898, respectively. 
Bentham, working on type specimens, classifies the first 
three as distinct species in his “ Flora Australiensis,’ but 
Miieller later, in his Census and “ Eucalyptographia”’ sup- 
presses his own species #. conerea under #. pulverulenta (a 
synonymy with which Bentham states he did not agree, 
B. Fl. i. p. 239), a procedure which I think is to be re 
gretted, as it has caused much confusion in regard to these 
species. 
A research on the Eucalypts, that has recently been 
completed by myself and colleague, H. G. Smith, caused us 
to give these particular species some attention, in order 
that the origin of the chemical results should be nightly 
placed. : 
I.—Lucalyptus cordata, Labill. 
These investigations show conclusively that the first . 
species, /. cordata, is distinctly a Tasmanian tree, and does 
not occur on the mainland of Australia, a determination in 
agreement with Bentham and Miieller (B. Fl. iii., p. 234, 
and Miieller’s “ Eucalyptographia ’’). 
In herbarium material alone it can be easily shown to be 
quite distinct from— 
(a) Sims’ #. pulverulenta (described and figured in 
Bot. Mag., under t. 2087). 
(6) L. emerea (F.v.M., B. FI. iii., p. 239)— 
the differences being particularised under each species in 
this paper. In field characters ali three are still 
further specifically removed. Deane and Maiden (Proc. 
Linn. Soc. N:S8.W., 1901, p. 126), have, however, recorded 
this species as occurring in New South Wales at Cow Flat, 
