condition mean min max Sterile Leaflet 4.049366666666667 0.0 10.7278 Fertile Leaflet with Sori 0.570945 0.42369 0.86046 Primary Rachis 0.6106440000000001 0.0 1.39813 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