492 EVOLUTION OF THE EUCALYPTS, 



0*3; second 2-5x1, subsessile; third 3-3x1 cm., sessile. Leaves 

 have slight reddish tinge underneath. First internode 1, second 

 0-6, third 1*3, fourth 2-5 cm. 



A', amygdalhia Labill. — Before seeing the remarks of Messrs. 

 Baker & Smith, in their "Eucalyptsof Tasmania," on this species, 

 I had been puzzled by the marked difference between the seedlings 

 of the Tasmanian E.amygdalina and those of the mainland. This 

 was explained in the light of the knowledge of the oils and 

 morphology of the two. 



E. amygdalina (Hobart, Tas.) (PI. Ixi.. fig.4; PI. Ixii , fig.2). — 

 Cotyledons small, obtusely quadrilateral, emargination slight or 

 absent, 0-3 x 0*25, petiole 0*3 cm. Leaves opposite, as far as seen, 

 narrow-lanceolate, tapering at both ends, subacute, sessile or sub- 

 sessile, edges sometimes waved, a few stellate hairs on midrib. 

 First pr. 0-8 x 0-25, second M x 0-3, third 1-3x0-3, fourth 

 1-8 X 0*3 cm. First internode 0*3, second 0*6, third 0-8. fourth 

 1 cm. Stem purplish, terete, covered with glandular hairs. 



E. amygdali7ia (Yarra Junction, Vic.) (PL Ixii., fig.l; PI. Ixix., 

 fig. 11). — In this, the cotyledons are larger, the emargination 

 more pronounced, and the leaves opposite but much broader, 

 ovate-lanceolate, obtuse, cordate at base, glabrous. The stem is 

 also glabrous. In E. amygdalina from Laurel Hill, N.S.W., the 

 primary leaves are of the same character, but not so broad. 



E. cocci/era Hook. f. (PI. Ix., fig.2). — The seedlings of this 

 species are very characteristic, and the dried specimen makes a 

 beautiful object when mounted. Cotyledons obtusely quadri- 

 lateral, cuneate at base, slightly eraarginate, 0-5 x 0-4, petiole 

 0'3cm. Leaves entire, opposite, glabrous, oval, obtuse, sessile, 

 petioles at first scabrous. First pr. 1x0-7, second 1-4 x 1, third 

 2*1 X 1*2 cm. Stem terete, scabrous; stem and undersides of 

 cotyledons and leaves deep purplish-red. 



E. Luehmanniana F.v.M. (PI. Ixii., fig. 3; PL Ixix., fig. 10).— 

 Cotyledons obtusely quadrilateral, slightly emarginate, cuneate 

 at base, 0-6 x 0*5, petiole 0-5 cm. Leaves opposite, entire, 

 glabrous, broadly lanceolate, tapering at base, obtuse, venation 

 fairly oblique, intramarginal vein away from edge, and showing 

 the characteristic looping arrangement, such as is met with in 



