what is circinate ptyxis and furcate venation in fern?

  • Circinate vernation is a coiled arrangement of leaves called fronds in fiddleheads of ferns. When fronds are formed in ferns, they are tightly curled so that the tips of young leaves are protected within the coil.
  • Ptyxis is the way in which a leaf is folded during its developmental stages.
  • Furcate venation is a type of venation in veins divide in a forked manner and the branches formed do not unite again to form network.

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