condition mean min max Sterile Leaflet 1.988282 0.0 5.80837 Fertile Leaflet with Sori 1.5306383333333333 0.0 3.98053 Primary Rachis 2.310102333333333 0.125216 6.35847 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