Leptopteris

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Leptopteris

fern genus

Learn about this topic in these articles:

annotated classification

In fern: Annotated classification
…thick-walled cells; 6 genera (Claytosmunda, Leptopteris, Osmunda, Osmundopteris, Plenasium, and Todea) and 20 modern species, distributed nearly worldwide. Order Hymenophyllales Family Hymenophyllaceae (filmy ferns)
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genus of Osmundaceae

In Osmundaceae
ferns—Osmunda, Todea, and Leptopteris—the family contains about 20 species; 5 to 10 extinct genera date from the Late Permian Period (about 260 million to 251 million years ago). Thamnopteris and Zalesskya are the earliest known members of the family. The Osmundaceae family is characterized by spore-producing structures (sporangia)…
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