condition mean min max Sterile Leaflet 1.299038 0.188494 2.23404 Fertile Leaflet with Sori 0.967095 0.614065 1.22784 Primary Rachis 3.4880766666666667 1.53736 5.03805 Petiole 0.504637 0.167708 0.779398 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0