condition mean min max Sterile Leaflet 3.690493833333333 0.0459105 10.8784 Fertile Leaflet with Sori 0.18456066666666668 0.0 0.392087 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.08953499999999999 0.0 0.268605 Root 0.0 0.0 0.0