condition mean min max Sterile Leaflet 0.21802866666666665 0.0 0.654086 Fertile Leaflet with Sori 2.234755 0.331565 3.46749 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.05264233333333334 0.0 0.157927 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0