condition mean min max Sterile Leaflet 1.55036 0.95779 2.20431 Fertile Leaflet with Sori 3.870489666666667 0.768689 6.33086 Primary Rachis 0.1797133333333333 0.0 0.53914 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.53881 0.0 1.61643