condition mean min max Sterile Leaflet 2.9229166666666666 0.392375 7.88213 Fertile Leaflet with Sori 0.7894266666666667 0.0 1.99869 Primary Rachis 10.19559 0.0 28.8203 Secondary Rachis 20.794945900000002 0.0790077 59.5191 Petiole 6.102163 0.0 17.5029 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0