condition mean min max Sterile Leaflet 4.730678 0.0 13.4485 Fertile Leaflet with Sori 1.6058063333333332 0.0 4.5249 Primary Rachis 0.9068999999999999 0.0 2.7207 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