condition mean min max Sterile Leaflet 1.5394663333333334 0.923099 1.97537 Fertile Leaflet with Sori 2.3546 1.08328 4.61571 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.7524106666666666 0.463802 3.6003 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0