condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 6.686186666666667 0.0 19.8749 Primary Rachis 0.12165366666666666 0.0 0.364961 Secondary Rachis 3.7095000000000002 0.0 11.1285 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0