condition mean min max Sterile Leaflet 0.8732746666666666 0.0 1.69221 Fertile Leaflet with Sori 3.001198 0.804384 6.71297 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.15407233333333334 0.0 0.317351 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0