condition mean min max Sterile Leaflet 0.210869 0.0 0.334338 Fertile Leaflet with Sori 2.0457816666666666 0.0 5.81467 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 4.025803333333333 0.0 7.05941 Root 25.29573 1.72539 48.105