condition mean min max Sterile Leaflet 1.9418346666666668 0.903264 3.40945 Fertile Leaflet with Sori 2.299478 0.363534 3.7779 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.10351900000000001 0.0 0.310557 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0