| Abstract: | Eucalyptus is a large genus in which hybridization may produce populations which present taxonomic difficulties. A small group of plants, apparently morphologically intermediate between Eucalyptus pauciflora and E. radiata, was studied in an attempt to determine whether hybridization was occurring, and to investigate the use of different techniques of analysis (morphological, chemical and numerical). Taken as a whole, the data from adult and seedling morphology, flavonoid composition, and volatile oil composition of the plants studied prove that they are indeed hybrids between the two species of Eucalyptus; however, these data also indicate some interesting problems in the application of some of these techniques to this particular situation. |
