condition mean min max Sterile Leaflet 1.411775 0.0 3.56253 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 4.142411666666667 0.823505 9.9459 Petiole 0.03522033333333333 0.0 0.105661 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0