condition mean min max Sterile Leaflet 0.536402 0.132399 0.789137 Fertile Leaflet with Sori 221.91433333333333 197.813 261.493 Primary Rachis 0.10858733333333333 0.0 0.325762 Petiole 0.0 0.0 0.0 Crozier 0.10537600000000001 0.0 0.316128 Rhizome 0.043598 0.0 0.130794 Root 2.254865 0.633175 4.89855