calyptra

English
Ripening moss sporophyte shedding its calyptra
Bud of a flower of a grape shedding its calyptra
Calyptrae splitting off the opening buds of Eucalyptus ficifolia
Calyptra(1) over a fly's haltere(3)

Etymology

From Ancient Greek καλύπτρα (kalúptra, “covering or veiling”).

Noun

calyptra (plural calyptras or calyptrae)

  1. (botany) In bryophytes, a thin, hood of tissue that forms from the archegonium and covers the developing sporophyte and is shed as it ripens.[1]
    • 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page 4:
      (b) sporophyte with foot reduced, the entire sporophyte enveloped by the calyptra, which is ± stipitate at the base.
  2. (botany) any cap-like covering of a flower or fruit, such as the operculum over the unopened buds of Eucalyptus flowers[1]
  3. (botany) Any of various coverings at the tips of structures, in the terminology of various authors; for example rootcaps and the apical cells of trichomes.[1]
  4. (entomology) In flies such as the housefly, Musca, in the taxonomic order Diptera, zoological section Schizophora, subsection Calyptrata, the calyptra is a membranous rearward extension of the forewing; it covers the haltere.[2]

Translations

References
  1. Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928
  2. C. R, Osten Sacken. Notice on the terms: Tegula, antitegula, squama and alula, as used in Dipterology

Latin

Etymology

Borrowed from Ancient Greek κᾰλῠ́πτρᾱ (kalúptrā).

Pronunciation
  • (Classical) IPA(key): /kaˈlyp.tra/, [kaˈlʏp.tra]

Noun

calyptra f (genitive calyptrae); first declension

  1. A kind of veil used by women

Inflection

First declension.

Case Singular Plural
Nominative calyptra calyptrae
Genitive calyptrae calyptrārum
Dative calyptrae calyptrīs
Accusative calyptram calyptrās
Ablative calyptrā calyptrīs
Vocative calyptra calyptrae

References
  • calyptra in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • calyptra in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.