526 EVOLUTION OF THE EUCALYPTS, 



dral frequently appears. Finally, the Y-shaped cotvledon is 

 also usually associated with eucalyptol, pinene, and aromadendral. 

 Eucalyptus is not merely a wonderful genus economically and 

 botanically, it also yields important information to the student 

 of Evolution, in that so many of its connecting links appear to 

 have survived, and we are now in a better position to perceive 

 the important part in that process, which has been taken by the 

 cotyledons. 



REFERENCES. 



EwART, Prof. A. J. — ''The Longevity of Seeds," Proc. Roy. Soc 



Vict., N.S., Vol. xxi., Part 1. 

 Maiden, J. H. — "Critical Revision of the Grenus Eucalyptus'^ et 



alia. 

 Baker, E. T.. and Smith, H. G. — '"Research on the Eucah'pts" et 



alia, 

 von Mueller, Baron. — "Eucalyptographia." 

 Andrews, E. C. — "Development of the N.O. Myrtaceae,'' Proc 



Linn. Soc. N.S.Wales, Vol. xxxviii. 

 Cambage, R. H. — "Development and Distribution of the Genus 



Eucalyptus;' Proc. Roy Soc. N.S.Wales, May 7tb, 1913. 

 Bentham, G. — "Flora Australiensis." 

 Lubbock, Sir John. — "On Seedlings." 



EXPLANATION OF PLATES XXXVIII. -LXIX 



Eucalypt Seedlings. 

 Plate xxxviii. 



Fig.l.—E. calophylla R.Br. ; W.A. 

 Fig. 2. — E. intermedia R. T. Baker; Mallangarell 

 Fig. 3. — E. trachyphloia F.v.M. ; Murrumbo. 

 Fig. 4. — E. corymhosa Sm. ; Parramatta. 

 Plate xxxix. 



Fig.l. — E. eximia Schau. ; Springwood. 

 Figs.2-3.— £. perfoliata B.Br. 

 Fig. 4.' — E. marginata Sm. ; W.A. 



Plate xl. 

 Fig.l. — E. Icevopinea R. T. Baker; Armidale. 

 Fig. 2. — E. Icevopinea; Rydal. 

 Fig. 3. — E. Icevopinea; Lilydale, Vic. 

 Fig.4. — E. dextropinea R. T. Baker; Monga. 



