condition mean min max Sterile Leaflet 1.1714326666666668 0.356009 2.65505 Fertile Leaflet with Sori 7.939903333333333 0.60739 15.6527 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