condition mean min max Sterile Leaflet 31.173736666666667 0.0 89.1801 Fertile Leaflet with Sori 42.36546 2.88408 85.4263 Primary Rachis 3.691727 0.359211 8.00432 Petiole 2.16245 0.0 5.31465 Crozier 0.0 0.0 0.0 Rhizome 0.219413 0.0 0.658239 Root 0.0 0.0 0.0