condition mean min max Sterile Leaflet 33.84161666666667 8.66685 71.4801 Fertile Leaflet with Sori 28.533266666666666 14.5285 43.107 Primary Rachis 0.303566 0.0 0.910698 Petiole 0.0 0.0 0.0 Crozier 0.158463 0.0 0.243347 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0