Fig. S1 Examples of venation pigment patterning.

Fig. S2 Floral phenotypes of accessions of different species within the genus Antirrhinum.

Fig. S3 Floral phenotypes of wild accessions of Antirrhinum majus from Toulouse and Barcelona.

Fig. S4 DNA sequence alignments for the nitrate reductase and dihydroflavonol 4-reductase (Dfr) genes used for constructing the phylogenetic trees displayed in Fig.  5.

Fig. S5 DNA sequence alignments and maximum likelihood tree constructed using the Venosa gene.

Table S1 Homogeneity test and base data for foraging behaviour of pollinators on arrays composed of two different colour morphs of Antirrhinum majus

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