condition mean min max Sterile Leaflet 2.3838533333333336 0.0 5.9934 Fertile Leaflet with Sori 0.7220147 0.0192361 1.79758 Primary Rachis 0.1906976 0.0150288 0.283156 Petiole 0.012042966666666667 0.0 0.0181481 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0