condition mean min max Sterile Leaflet 2.3190666666666666 0.0 6.9572 Fertile Leaflet with Sori 1.14931 0.0 2.44207 Primary Rachis 0.16127633333333333 0.0 0.483829 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