condition mean min max Sterile Leaflet 0.15284533333333333 0.0 0.458536 Fertile Leaflet with Sori 15.6101 14.3116 17.9443 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.48319233333333333 0.165397 0.935752 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.173716 0.0 0.363393