• Ferns, of which there are now about 12000 species, have been on our planet for more than 300 million years in the Carboniferous Period (about 369-280 million years ago), they grew abundantly; the period was known as the ‘Age of Ferns’. Most ferns of this period became extinct but, later, some evolved into our modern ferns.
• Ferns are unlike other plants and have complex structures. What we think of as leaves is arbitrarily called the ‘frond’. It is divid...
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