condition mean min max Sterile Leaflet 2.5583366666666665 1.62313 3.29246 Fertile Leaflet with Sori 3.60197 1.98147 4.8268 Primary Rachis 0.37057999999999996 0.0 1.11174 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0