condition mean min max Sterile Leaflet 3.8761803333333336 0.0 11.3543 Fertile Leaflet with Sori 1.20058 0.0 3.60174 Primary Rachis 0.48054233333333335 0.0 0.843933 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0