condition mean min max Sterile Leaflet 2.701219666666667 0.0 7.90162 Fertile Leaflet with Sori 0.6747706666666666 0.0 1.72564 Primary Rachis 0.2886966 0.0390708 0.519578 Petiole 0.250521 0.0 0.556132 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0