condition mean min max Sterile Leaflet 0.7106466666666668 0.0 2.13194 Fertile Leaflet with Sori 4.294085666666667 0.915477 9.77868 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.7781153333333334 0.0 1.4954 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0