condition mean min max Sterile Leaflet 1.62585 0.0 3.03878 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 2.0057373333333333 0.677912 3.2329 Petiole 0.2361633333333333 0.0 0.70849 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0