condition mean min max Sterile Leaflet 0.26228799999999997 0.204514 0.291761 Fertile Leaflet with Sori 1.85113 0.71667 2.97384 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