| Summary: | Supervisor: P Linder. === All members of Cunonia, excluding C. capensis, occur on the island of New Caledonia. Dickison has repeatedly noted (1973, 1975, 1980, and 1984,) that evolutionary patterns may have led to incorrect systematic conclusions among many cunoniaceous genera, which are likely to generate incorrect systematic conclusions. For this reason, a study into the morphological characters defining C. capensis was undertaken. Although the possibility that the disjunct biogeographical pattern of C. capensis might be explained on the basis of taxonomic error was appealing, it was not conclusively supported from this investigation. Instead it was found that of the six characters supposed to distinguish Cunonia from Weinmannia, three agreed with the present position of C. capensis with Cunonia, whilst the other three placed C. capensis with Weinmannia. This study also served to highlight the need for further investigation and identification of characters which separate Cunonia and Weinmannia at the species level.
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