condition mean min max Sterile Leaflet 2.41059 0.0 5.5223 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.048841666666666665 0.0 0.146525 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