condition mean min max Sterile Leaflet 2.43367 0.0 6.07467 Fertile Leaflet with Sori 1.3217466666666666 0.0 3.96524 Primary Rachis 0.438125 0.0 0.675323 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