condition mean min max Sterile Leaflet 0.04294866666666666 0.0 0.128846 Fertile Leaflet with Sori 2.17574 1.448 3.56079 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.6356470000000001 0.0 1.15535 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0