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Frustule vs Epitheca - What's the difference?

frustule | epitheca |

As nouns the difference between frustule and epitheca

is that frustule is (botany) the siliceous shell of a diatom while epitheca is (microbiology|planktology) the upper half of the theca of a thecate protist such as a diatom or dinoflagellate.

frustule

English

Noun

(en noun)
  • (botany) The siliceous shell of a diatom.
  • *
    • A frustule is the hard and porous cell wall or external layer of diatoms. The frustule is composed almost purely of silica ...

    See also

    *frustum

    Anagrams

    *

    epitheca

    English

    Noun

    (epithecae)
  • (microbiology, planktology) The upper half of the theca of a thecate protist such as a diatom or dinoflagellate.
  • *
    • The frustule's structure is usually composed of two overlapping sections, known as valves. The upper valve is termed the epitheca and is slightly larger and overlaps the lower valve, the hypotheca.
  • * ucl.ac.uk diatom webpage
    • The diatom frustule is often likened to a pill-box ... with an epitheca (larger upper valve), and a hypotheca (smaller lower valve).

    Coordinate terms

    * hypotheca

    Derived terms

    * epithecal

    See also

    *

    Anagrams

    *