condition mean min max Sterile Leaflet 4.265101 0.798793 8.80281 Fertile Leaflet with Sori 0.9051516666666667 0.371916 1.55782 Petiole 0.0 0.0 0.0 Crozier 27.4613 20.9355 40.2453 Rhizome 3.5915277333333333 0.0611032 8.20726 Root 0.5077838 0.0335784 0.995685