condition mean min max Sterile Leaflet 0.5819463333333333 0.0 1.53357 Fertile Leaflet with Sori 2.27424 1.46466 3.22438 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.072598 0.0 0.217794 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0