(L. testa, shell) the hard outer covering or integument of seed.thalloid search for term- a., of or resembling a thallus.Thallophyta search for term- n. pl.
Micropyle- A minute opening in the integument of an ovule through which the pollen tube normally passes to reach the embryo sac, usually closed in the mature seed to form a superficial scar.
  
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