The use of hydroxystilbene compounds as taxonomic tracers in the genus Eucalyptus

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Abstract
Chromatographic properties of hydroxystilbene derivatives have been studied. The corresponding dihydro derivatives formed on hydrogena-tion of these compounds undergo a characteristic RF shift in the N-acetic acid solvent. The cis- and trans-isomers of the three hydroxystilbene derivatives of E. wandoo heartwood are separated by N-acetic acid on a paper chromatogram. The use of cis- and trans-isomers of 3,5, 4[image]-tri-hydroxystilbene and its 3[beta]-D-glucoside as taxonomic tracers differentiates between the fairly "natural" series of the subsection Longiores of the genus Eucalyptus, and separates odd species and odd subseries which are rather artificially classified by Blakely (1955).

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