condition mean min max Sterile Leaflet 2.2468333333333335 0.9855 3.67041 Fertile Leaflet with Sori 1.7688883333333334 0.739465 2.82693 Primary Rachis 0.051865999999999995 0.0 0.155598 Secondary Rachis 0.33116866666666667 0.0 0.843663 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0