condition mean min max Sterile Leaflet 6.337372 0.0 18.8474 Fertile Leaflet with Sori 2.3410913333333334 0.0 6.48785 Primary Rachis 0.37501 0.0 1.12503 Petiole 0.056503 0.0 0.169509 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0