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Seed ferns tested leaf vein networks 201 million years ago, here’s how
As Coiro explained the fossil leaf Furcula granulifer with its venation resembling angiosperms, was identified as an ...
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Venation and Senescence of Polyembryonic Citrus Plants
grandis. 4. The size of the vein-islets is directly correlated with the maturity of the leaf. From the most immature to the fully matured leaves there is a gradual increase in the size of vein-islets.