condition mean min max Sterile Leaflet 4.0827 0.0 12.2481 Fertile Leaflet with Sori 1.52316 0.0 4.56948 Primary Rachis 0.0 0.0 0.0 Petiole 0.06407733333333333 0.0 0.192232 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0