condition mean min max Sterile Leaflet 4.865603333333333 0.0 11.402 Fertile Leaflet with Sori 1.2804296666666666 0.417969 2.37858 Primary Rachis 0.178994 0.0 0.331049 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