What characteristics used discriminate among families ferns

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1. What characteristics are used to discriminate among the families of ferns and lower vascular plants?

2. For example, what characteristics might be used in construction of a key to these families?

Reference no: EM13938124

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What characteristics used discriminate among families ferns : What characteristics are used to discriminate among the families of ferns and lower vascular plants? For example, what characteristics might be used in construction of a key to these families?
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