condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.13336 1.61813 2.70708 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.103036 0.0 0.309108 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0