condition mean min max Sterile Leaflet 13.2337 10.5424 16.6275 Fertile Leaflet with Sori 15.445333333333334 13.9476 17.3185 Primary Rachis 0.996869 0.0 2.34349 Petiole 0.0 0.0 0.0 Crozier 0.09396633333333333 0.0 0.281899 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0