THE FAMILIAL AND SUBFAMILIAL RELATIONSHIPS OF APOCYNACEAE AND ASCLEPIADACEAE EVALUATED WITH RBCL DATA
1996
Sequence data for therbcL gene from twenty-four taxa of the familiesApocynaceae andAsclepiadaceae were cladistically analysed in order to evaluate the existing familial and subfamilial classification. The taxa sampled represent all described subfamilies and a majority of the described tribes. The cladistic analysis shows that theAsclepiadaceae are nested within theApocynaceae. An amalgamation of the two families is therefore recommended. The subfamilial classification is also in need of revision: the subfamiliesPlumerioideae andApocynoideae of the current classifications are paraphyletic, as are many of the tribes. Potential subfamily candidates and characters traditionally used in the classification are discussed.
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