condition mean min max Sterile Leaflet 2.3275663333333334 0.0 6.74439 Fertile Leaflet with Sori 0.145427 0.0 0.436281 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