condition mean min max Sterile Leaflet 0.16104986666666668 0.0576306 0.233081 Fertile Leaflet with Sori 2.046258 0.230814 4.06754 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0066845333333333335 0.0 0.0200536 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0