181 



AFFINITIES. 



E. clavigera A. Cunn. is perhaps the most typical member of a group which in 

 its fruits of papery-like thinness has affinity to AngopJiora, and may perhaps be termed 

 Angophoroidese. Besides the species in the present part, they include E. brachyandra 

 F.v.M. in Part XXX, and E. tesselaris F.v.M. and E. Spenceriana Maiden in Part 

 XXXVIII. I have to be content with this reference at this place, since the plan of 

 this work does not permit discussions or group-affinities, which is reserved until the 

 taxonomic portion is farther advanced. 



1. With E. grandifolia R. Br. 



" In the botanic collections formed by Mr. Schultz at Port Darwin, specimens of E. grandifolia 

 occur, which show the leaves more generally opposite, all conspicuously stalked and all broad, the flowers 

 larger on still longer and also stronger stalklets, the lid broader, not shining, somewhat wrinkled, more 

 convex and prominently pointed; fruit is not available for comparison." (" Eucalyptographia." under 

 E. clavigera). 



Let us compare Plates 152 with Plates 153 and 154 (E. grandifolia). The two 

 species seem to be sufficiently separated by the hairy, sessile juvenile leaves of 

 E. clavigera, contrasted with the glabrous, petiolate leaves of E. grandifolia. In 

 E. grandifolia the mature leaves are more variable, and the fruits larger. 



2. With E. tesselaris F.v.M. 



" E. tesselaris differs in all the branches being smooth, the leaves all scattered and narrow with closer 

 veins, the flowers smaller on short stalklets, and also generally f ewer in each individual umbel, and perhaps 

 in its tesselar semipersistent bark." (" Eucalyptographia " under E. clavigera). 



" In reality our present plant (E. tesselaris) is more nearly akin to E. clavigera, differing principally 

 in the smoothness of the branchlets and young foliage, in the narrowness and always scattered position of 

 the leaves, and in the lesser number and shortness of its flower-stalklets." (''Eucalyptographia" under 

 E. tesselaris. ) 



The affinities of these two species will be again referred to when E. tesselaris is 

 reached in Part XXXVIII. 



3. With E. alba Reinw. 



Bears close affinity to E. clavigera. (F.v.M. in " Eucalyptographia " under 

 E. alba). 



Compare Plates 105 to 107, and especially 106, with the juvenile leaf ,Part XXV. 

 There is some superficial resemblance, particularly in regard to-the large juvenile leaves, 

 but this resemblance is rather with E. grandifolia, which Mueller might not have 

 recognised, as distinct from E. clavigera. The buds of E. alba are not clavate, and the 

 fruits of that species do not belong to the Angophoroideae. 



