condition mean min max Sterile Leaflet 2.009555333333333 0.375146 3.12619 Fertile Leaflet with Sori 0.27152133333333334 0.0 0.814564 Primary Rachis 2.63437 0.0 7.90311 Petiole 0.126613 0.0 0.379839 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0