condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.7754466666666666 1.01531 2.52584 Petiole 2.2987973333333334 0.875762 3.45948 Crozier 2.77356 2.69008 2.91368 Rhizome 0.566114 0.0 1.02939 Root 0.0 0.0 0.0