condition mean min max Sterile Leaflet 2.048896666666667 0.0 4.84628 Fertile Leaflet with Sori 4.02639 0.0 6.73389 Primary Rachis 1.0277203333333333 0.0 2.83006 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