EUCALYPTUS FOELSCHEANA. 



Hooker from the great Kew collections, may belong to an extreme form of E. Foelscheana, 

 althougli the leaves pass into a lanceolar form, and the flower-stalklets are of lesser length. If it 

 was not for the great diversity of habit E. Foelscheana might be approximated very closely to 

 E. terminalis. 



Also in the particular series of Eucalyptus-species, to which E. Foelscheana belongs, some 

 forms occur, the origin of which may possibly be traceable to hybridism, notwithstanding that in 

 this genus the contact of the anthers with the stigma commences already, while stamens and 

 pistils are still covered by the lid. The illustrious Professor Charles Naudin has not long ago 

 positively observed, that cross-fertilisation does occur also among Eucalypts, — indeed the distin- 

 guished zoologist, William 8h. McLeay, expressed an opinion already many years ago, that 

 parrots, cockatoos and some other birds, while feeding on the buds of Eucalypts, might be 

 instrumental in carrying the pollen of one species of these trees to the stigma of another. 



Explanation of Analytic Details. — 1, an unexpanded flower, the lid lifted ; 2, longitudinal section of an unex- 

 panded flower ; 3, some stamens, the outer filaments expanded ; 4 and 5, front- and back-view of an anther, with portion of 

 the filamentj 6, style and stigma; 7 and S, longitudinal and transverse section of a fruit; 9 and 10, sterile and fertile 

 seeds ; all figures enlarged, but to various extent. 



