condition mean min max Sterile Leaflet 2.6780353333333333 0.0 7.77362 Fertile Leaflet with Sori 0.7002433333333333 0.0 2.10073 Primary Rachis 0.45363 0.0 1.36089 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0