condition mean min max Sterile Leaflet 6.342272 0.563466 12.275 Fertile Leaflet with Sori 3.4717146666666667 0.363506 9.6872 Primary Rachis 0.0 0.0 0.0 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