#fern_seed  the asexual spore of ferns that resembles dust; once thought to be seeds and to make the possessor invisible
  supertype:  spore  small usually single-celled reproductive body produced especially by certain bacteria and algae and fungi and nonflowering plants
  part of:  fern  any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores

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