condition mean min max Sterile Leaflet 0.615495 0.367759 0.884208 Fertile Leaflet with Sori 2.3730996666666666 0.835829 3.80341 Primary Rachis 0.352179 0.0 0.863142 Secondary Rachis 1.165043 0.709374 1.86639 Petiole 0.06562533333333333 0.0 0.196876 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0