condition mean min max Sterile Leaflet 0.315463 0.0 0.715641 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.016048 0.0 2.8605 Secondary Rachis 0.8453466666666666 0.0 2.53604 Petiole 2.319776 0.24399 5.98395 Crozier 0.0 0.0 0.0 Root 0.44421 0.0 1.33263