A comparative study of the wood anatomy and floral vascular systems of the New Zealand genera of the Escalloniaceae, Carpodetus, Ixerba and Quintinia
Degree GrantorUniversity of Canterbury
Degree NameMaster of Science
The New Zealand species of the Escalloniaceae are placed in three genera, Carpodetus, Ixerba and Quintinia (Allen, 1961). Some features which separate these genera are sufficiently striking to suggest that a comparison between them would be of interest. For example, the ovary is superior in Ixerba, half inferior in Carpodetus and sometimes fully inferior in Quintinia. Also, the phyllotaxis in most members of the family is spiral, whereas in Ixerba the leaves often stand opposite or in tightly aggregated verticils. Wood anatomy and the vascular system of the flower were selected for investigation, because they would provide two unrelated fields of new evidence. As each of these systems would provide a range of characters for comparison, it was expected that they would either confirm the grouping together of these genera within the Escalloniaceae or that they might reveal important differences.