condition mean min max Sterile Leaflet 2.1255100000000002 1.74547 2.34478 Fertile Leaflet with Sori 2.81644 2.4734 3.17954 Primary Rachis 3.8404599999999998 3.04618 4.82996 Secondary Rachis 3.50434 3.04324 4.09534 Petiole 4.12712 3.9074 4.25724 Crozier 4.8800099999999995 4.074 5.63484 Root 4.183 3.55894 4.83893