condition mean min max Sterile Leaflet 1.8599776666666665 0.377531 4.59913 Fertile Leaflet with Sori 1.2004406666666667 0.654782 1.73711 Primary Rachis 0.0 0.0 0.0 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