condition mean min max Sterile Leaflet 2.1151066666666667 0.0 3.46589 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.09666866666666667 0.0 0.290006 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