Key to Tasmanian Dicots
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Ovary position
Superior - placed above the disc on which the petals, sepals and anthers are attached), Hint: the fruit can be a good indication of the position of the ovary. If the ovary is superior then the fruit usually has no perianth scars near its top and sometimes has the remnants of the perianth near its base

Inferior - placed below the disc (sometimes embedded within it) on which the petals, sepals and anthers are attached), - if the ovary is inferior then the fruit often has the remnants of the perianth on its top

Half inferior – with sepals, petals and anthers attached midway up the ovary

University of Tasmania
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