condition mean min max Sterile Leaflet 0.4734623333333333 0.100004 0.812762 Fertile Leaflet with Sori 2.744553333333333 1.4436 4.02775 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0