seta

(noun)

the stalk of a moss sporangium, or occasionally in a liverwort

Related Terms

  • peristome
  • rhizoid

Examples of seta in the following topics:

  • Mosses

    • Green, flat structures resembling true leaves, but lacking vascular tissue are attached in a spiral to a central stalk or seta.
    • The seta (plural, setae) contains tubular cells that transfer nutrients from the base of the sporophyte (the foot) to the sporangium .
    • This photograph shows the long slender stems, called setae, connected to capsules of the moss Thamnobryum alopecurum.
  • Phylum Annelida

    • Chitinous hairlike extensions, anchored in the epidermis and projecting from the cuticle, called setae/chaetae are present in every segment.
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