condition mean min max Sterile Leaflet 0.379737 0.0 0.835509 Fertile Leaflet with Sori 10.49803 7.01508 14.5222 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.3899483333333333 0.0 3.63453 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0