A former botanical classification for plants having separate petals that are not fused or joined together.
From Greek 'dialytos' (separated) + 'petalon' (petal) + '-ae' (Latin plural feminine ending). This term represents an older taxonomic grouping based on whether flower petals are distinct or merged.
Darwin's colleagues used classification systems like this, grouping plants by single features—but modern DNA analysis revealed these groupings didn't match evolutionary history at all, showing how beautiful a classification system can be while being completely wrong.
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