condition mean min max Sterile Leaflet 1.9491466666666666 0.0 5.84744 Fertile Leaflet with Sori 0.2972943333333333 0.0 0.891883 Primary Rachis 2.2349699999999997 0.0 5.60448 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