Australian Tropical Rainforest Plants - Online edition

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FL37 of fused sepals Sepals fused to one another either partly or completely so that teeth or lobes may or may not be visible at the apex.
FL38 of free sepals Sepals completely free from one another.

Calyx fusion

Where the calyx and corolla are not clearly differentiated, use the corolla characters for the perianth.

The fusion of the calyx, as exhibited by the flower at anthesis. If an hypanthium is developed the calyx lobes are regarded as fused but they are also regarded as free if they are attached separately to the hypanthium. This may detract from the scientific merit of the system but should avoid confusion if an observer is not familiar with the concept of an hypanthium.

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