Jun 19, 2016
Fern world
https://500px.com/photo/159328045/fern-world-by-bogdan-d-photographer
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Fern world
https://500px.com/photo/159328045/fern-world-by-bogdan-d-photographer
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Determinări de familii ale ferigilor
Determinări de familii ale ferigilor
Pteridophyta Determinare de familii 1a. Tulpina articulată, fistuloasă, simplă sau la noduri verticilat ramificată. Frunze reduse şi concrescute, formând teci dinţate la nodurile tulpinii. => Equsetaceae 1b. Tulpina nearticulată. Frunzele nu sunt concrescute în teci. => 2 2a. Frunze mai scurte de 1,5 cm. => 3 2b. Frunze plane sau convolute, mai lungi de 1,5cm. => 5 3a. Plante terestre, cu frunze…
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