condition mean min max Sterile Leaflet 0.340373 0.163763 0.612746 Fertile Leaflet with Sori 11.11246 8.54469 15.3621 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.2788306666666667 0.545549 2.36651 Petiole 0.378327 0.0 0.625671 Crozier 0.0 0.0 0.0 Root 0.251019 0.0 0.646536