condition mean min max Sterile Leaflet 0.070358 0.0 0.211074 Fertile Leaflet with Sori 4.48892 4.15599 4.9602 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0