[poizan42]

According to wikipedia they are cultivated from a hybrid of mandarin orange and Ichang papeda, the latter being from another wild lineage than the three shown.

[zeristor]

Indeed, thanks.

This takes the citrus gram into 3D

https://en.wikipedia.org/wiki/Papeda_(citrus)

[poizan42]

You might need several more dimensions (assuming this quoted claim is correct - it does come with a Citation Needed)

> Recent genetic analysis shows the papedas to be distributed among distinct branches of the Citrus phylogenetic tree, and hence Swingle's proposed subgenus is polyphyletic and not a valid taxonomic grouping, but the term persists as a common name.

[zeristor]

Good point, as ever.

So what would be interesting is an interdimensional citrus fruit.

[antasvara]

From what I can tell, the papeda is included as a sort of addendum in the bottom right corner of the chart.