condition mean min max Sterile Leaflet 3.19453 3.05988 3.44141 Fertile Leaflet with Sori 3.6764599999999996 2.31645 4.45818 Primary Rachis 0.3469533333333333 0.0 1.04086 Secondary Rachis 0.356762 0.0 0.908246 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0