condition mean min max Sterile Leaflet 0.3533806666666667 0.271088 0.513745 Fertile Leaflet with Sori 2.855849 0.330007 4.96325 Primary Rachis 0.077577 0.0 0.232731 Secondary Rachis 1.2811643333333333 0.762107 2.25496 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0