condition mean min max Sterile Leaflet 6.893623333333333 0.0 12.878 Fertile Leaflet with Sori 1.1699403333333334 0.441501 1.7437 Primary Rachis 0.934174 0.382212 1.34053 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