condition mean min max Sterile Leaflet 1.041102 0.0 2.85348 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 3.0255296666666665 0.411139 7.08376 Petiole 0.0380985 0.0 0.061921 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0