condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 4.818866666666667 0.0 14.4566 Primary Rachis 0.15088300000000002 0.0 0.452649 Secondary Rachis 2.6429266666666664 0.0 7.92878 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0