Stockwellia quadrifida (Stockwellia quadrifida)
Description
A new genus and species in the eucalypt group of the Myrtaceae is described.�Stockwellia quadrifida�D.J. Carr, S.G.M. Carr & B.Hyland�gen. et sp. nov.�is a rainforest tree of restricted distribution on the Atherton Tableland, North Queensland, Australia. Molecular data suggest that it is the sister taxon to�Eucalyptopsis�and this is supported by morphological characters. The prolonged hypanthium and reduced perianth appear to be synapomorphies for these two genera and the circumscissile hypanthium a synapomorphy shared with�Allosyncarpia.�Stockwellia�differs from�Eucalyptopsis�by the distinct, albeit reduced, perianth and the hypanthium splitting into four segments at anthesis. The relationship of these two genera indicates an historical biogeographical link between New Guinea and the Queensland wet tropics region.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Magnoliopsida
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Order: Myrtales
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Family: Myrtaceae
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Genus: Stockwellia
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