condition mean min max Sterile Leaflet 0.899369 0.0 2.16639 Fertile Leaflet with Sori 3.89528 3.37714 4.26483 Primary Rachis 0.05100333333333334 0.0 0.15301 Secondary Rachis 1.27487 0.0 3.82461 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0