condition mean min max Sterile Leaflet 2.5071566666666665 0.0 7.52147 Fertile Leaflet with Sori 14.934050666666666 0.202183 44.1517 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.071408 0.0 0.214224 Root 0.28916000000000003 0.0 0.627823