condition mean min max Sterile Leaflet 1.5105493333333333 0.317848 2.86121 Fertile Leaflet with Sori 2.1289766666666665 0.0 4.77553 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 3.11963 0.158115 8.85599 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0