condition mean min max Sterile Leaflet 11.929617666666667 0.1938 34.9018 Fertile Leaflet with Sori 41.6506 16.1318 79.2604 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 3.17268 2.33822 4.76966 Rhizome 1.5908776666666666 0.964113 2.00853 Root 0.364419 0.0 0.865943