Subway map of grapevine and maracuyá Mapper graphs.

(A) Primary structure of the grapevine Mapper graph with vertices represented by the average leaf shape within a given vertex. (B) Primary structure of the maracuyá Mapper graph with vertices represented by the average leaf shape within a given vertex. No single morphotype dominates each vertex demonstrating that Mapper is clustering species based on an underlying data structure and not by shape similarities. Morphotypes A and B, which display unique heteroblastic trajectories, are labeled in blue and orange, respectively.