condition mean min max Sterile Leaflet 0.2077726666666667 0.0 0.623318 Fertile Leaflet with Sori 2.682918 0.336514 3.94221 Primary Rachis 0.09230933333333334 0.0 0.276928 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0