condition mean min max Sterile Leaflet 1.602139 0.455497 2.57329 Fertile Leaflet with Sori 0.7737723333333333 0.175489 1.16532 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.2757173333333333 0.0 0.497624 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0