condition mean min max Sterile Leaflet 1.5095966666666667 1.33931 1.66373 Fertile Leaflet with Sori 1.277972 0.933486 1.51712 Primary Rachis 1.005509 0.919747 1.0646 Secondary Rachis 0.9891139999999999 0.768867 1.38232 Petiole 1.057425 0.994155 1.17412 Crozier 1.86081 1.49916 2.45068 Root 0.9035823333333333 0.745355 1.14336