condition mean min max Sterile Leaflet 4.036394666666666 0.0 11.8416 Fertile Leaflet with Sori 0.6585853333333334 0.0 1.22136 Primary Rachis 0.412286 0.241914 0.583459 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