condition mean min max Sterile Leaflet 0.34492266666666666 0.0 0.748365 Fertile Leaflet with Sori 2.7333393333333333 0.910808 5.57268 Primary Rachis 0.0278668 0.0 0.0836004 Secondary Rachis 1.527858 0.438697 3.32049 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0