sterigma ‎(plural sterigmata or sterigmas)

  1. (biology) A slim projecting part of the basidium of some species of fungi that carries the basidiospore.
  2. (biology) A woody projection from the tip of the leaf base in certain conifers (Picea and Tsuga).
    • 2009, Eckenwalder, J.E., Conifers of the World: The Complete Reference, Timber Press, ISBN 978-0881929744:
      These sterigmata are retained and make the twigs rough for several years after leaf fall.
  3. (biology) Part of the genitalia of moths.

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