condition mean min max Sterile Leaflet 2.779986 0.312668 5.16424 Fertile Leaflet with Sori 1.4674596666666666 0.310099 2.58796 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.09179833333333333 0.0 0.275395 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0