The Cineole Content and Taxonomy of Eucalyptus kochii Maiden & Blakely and E. plenissima (Gardner) Brooker, With an Appendix Establishing These Two Taxa as Subspecies

Abstract

The nomenclatural history and comparative morphology of Eucalyptus kochii Maiden & Blakely and E. plenissima (Gardner) Brooker are discussed. Studies on the oils of Western Australian eucalypts are surnmarised. Populations from various locations within the distributions of both taxa were subjected to rnorphornetric analyses and studied for the components and seasonality of oil production. The two taxa established herein as subspecies, viz. E. kochii subsp. kochii and E. kochii subsp. plenissima, differ in operculum shape and cineole production, and have separate distributions.