condition mean min max Sterile Leaflet 3.18534 0.0 9.55602 Fertile Leaflet with Sori 1.7560233333333333 0.0 5.26807 Primary Rachis 3.8836 0.0 11.6508 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