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The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate (Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns.
- Dryopteris filix-mas - Wikipedia
Dryopteris filix-mas, the male fern, is a common fern of the...
- Fern – Wikipédia, a enciclopédia livre
Fern – Wikipédia, a enciclopédia livre. "Fern" pode ser:...
- Fern - Simple English Wikipedia, the free encyclopedia
Ferns are a group of about 20,000 species of plants. About...
- Dryopteris filix-mas - Wikipedia
Fern ｢フェルン, Ferun?｣ is a young human mage, and she accompanies Frieren as her apprentice and party member. She is an orphaned war refugee originally from the Southern Lands, later adopted by Heiter and placed under Frieren's care after his death. Fern has a mature personality as a result of her...
Há 2 dias · Fern is a class of nonflowering, herbaceous vascular plants that reproduce by spores and have true roots, stems, and complex leaves. Learn about the diversity, distribution, and ecological role of ferns, as well as their ancient origin and taxonomy.
INTRODUCTION. Ferns are one of the oldest groups of plants on Earth, with a fossil record dating back to the middle Devonian (383-393 million years ago) (Taylor, Taylor, and Krings, 2009). Recent divergence time estimates suggest they may be even older, possibly having first evolved as far back as 430 mya (Testo and Sundue, 2016).
