408 



30 degrees — 



E. Stopfordi. 



30-35 degrees — 



E. Studleyensis. 



30-40 degrees — 



E. Barmedmanensis. 

 E. Auburnensis. 

 E. Cordieri. 



30-45 degrees — 



E. Peacocheana. 



E. leucoxylon-sideroxylon. 



35-40 degrees — 

 E. jugalis. 



35-45 degrees — 



E. melliodora var. 

 E. Forsythii. 



40 degrees — 



E. Yagobiei. 

 E. Trabuti. 



40-45 degrees — 



E. gomphocomuta. 

 E. jugalis. 



45 degrees — 



E. Tenandrensis. 



E. Antipolitensis . 



E. Algeriensis. 



E. Insizwaensis. 

 E. pseudoglobulus. 

 E. Tenandrensis. 



E. Forsythii. 



E. Barmedmanensis. 



E. Bourlieri. 



E. Stopfordi. 

 E. Yagobiei. 



E. Trabuti. 



Secondary veins of Fossil Leaves. 



For details as to these Australian species, see Part LIV of the present work. 



" By the almost equal proportion, of the Eucalyptus leaves of the wide-angled, -parallel-veined 

 {archaic) type, and those in which the veins are acutely disposed to the midrib, one cannot help concluding 

 that the flora is somewhat in the mid-stage of development, and precludes the idea of one so old even as 

 the Eocene." (F. Chapman, in Vict. Nat., xxxvii, 115, 1921.) 



From the following measurements it will be seen that practically the whole of 

 the fossil Eucalypts come under the Oblique section (Obliqua?). Only E. prcecoriacea 

 (Coriacea?) comes into Longitudinales, while E. Milligani is the most pronounced of the 

 Transversa?, although four species which immediately precede it in the list now submitted 

 have leaves whose angles overlap the Obliqua? and the Transversa?. I agree, therefore, 

 with Mr. Chapman's statement " the flora is somewhat in the mid-stage of develop- 

 ment," but I have not the evidence which would entitle me to agree to the " almost 

 equal proportion," &c, of the earlier part of the statement. 



