condition mean min max Sterile Leaflet 0.7410626666666666 0.241429 1.4405 Fertile Leaflet with Sori 2.22069 0.0 3.77639 Primary Rachis 0.0 0.0 0.0 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