condition mean min max Sterile Leaflet 1.45635 0.0 2.48658 Fertile Leaflet with Sori 2.244212 0.980256 3.20336 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.2602466666666667 0.0 0.538759 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0