condition mean min max Sterile Leaflet 0.1727795 0.0 0.419982 Fertile Leaflet with Sori 2.8102733333333334 1.66624 4.19334 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.072029 0.0 0.216087 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.457599 0.0 0.828251