calyptrae

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A form of calyptra — In bryophytes, a thin hood of tissue that forms from the archegonium and covers the developing sporophyte and is shed as it ripens.

Scrabble 16
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Meanings

noun
  1. pluralplural of calyptra

    On fertilization, the archegonia form obyriform calyptrae that are distinctly narrowed at base to form a stalk or peduncle; this does not occur in other Hepaticae.

    1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page 5

Rhymes & wordplay

Anagrams

caprylate
Cite this entry
APA

calyptrae. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/calyptrae

MLA

“calyptrae.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/calyptrae. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “calyptrae,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/calyptrae.

Source: calyptrae on Wiktionary, CC BY-SA 4.0.