condition mean min max Sterile Leaflet 3.0004933333333335 0.0 9.00148 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.50225 0.0 1.50675 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