condition mean min max Sterile Leaflet 1.834984 0.498807 4.47213 Fertile Leaflet with Sori 0.0 0.0 0.0 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 1.7845766666666665 0.0 5.35373