Examine the plant using a hand lens and identify the sporangia, which are bornes on stalks. Ferns have their sporangia on the lower (abaxial) surface or on the margins of the leaves or on specialised spore bearing branches. Lycophytes have sporangia in the axils of leaves, the angle between the leaf and stem.
Australian Tropical Ferns and Lycophytes - Online edition
5. Reproductive Structures
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