condition mean min max Sterile Leaflet 4.426600333333333 0.0 13.1393 Fertile Leaflet with Sori 0.259044 0.0 0.777132 Primary Rachis 0.140536 0.0 0.421608 Petiole 0.16064933333333334 0.0 0.481948 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0