condition mean min max Sterile Leaflet 1.7288536666666667 0.437831 3.71969 Fertile Leaflet with Sori 2.28503 0.78894 4.42198 Primary Rachis 1.4051580000000001 0.496254 2.3332 Petiole 0.49166133333333334 0.0 0.877339 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0