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单词 palea
释义

Definition of palea in English:

palea

nounPlural paleae ˈpeɪlɪəˈpālēə
Botany
  • The upper bract of the floret of a grass.

    Compare with lemma
    Example sentencesExamples
    • The lemma is inserted on the rachilla (the spikelet axis) and, together with the palea, encloses the floret.
    • Each flower has a lemma (outer bract) and a palea (inner bract) at its base, and contains two lodicules and one pistil surrounded by three anthers.
    • Early stages of floret development are similar in the ear and tassel: each floret is enclosed in a lemma and palea and all florets produce two lodicules, three stamens, and a gynoecium.
    • For all studies, fresh barley grains were extracted in triplicate (after removing the glumes and paleae and keeping the pericarp - aleurone intact) and analysed in duplicate.
    • Parts of the palea were removed to allow correct positioning and to avoid destruction of the sensor.

Origin

Mid 18th century: from Latin, literally 'chaff'.

 
 

Definition of palea in US English:

palea

nounˈpālēə
Botany
  • The upper bract of the floret of a grass.

    Compare with lemma
    Example sentencesExamples
    • For all studies, fresh barley grains were extracted in triplicate (after removing the glumes and paleae and keeping the pericarp - aleurone intact) and analysed in duplicate.
    • Parts of the palea were removed to allow correct positioning and to avoid destruction of the sensor.
    • Each flower has a lemma (outer bract) and a palea (inner bract) at its base, and contains two lodicules and one pistil surrounded by three anthers.
    • Early stages of floret development are similar in the ear and tassel: each floret is enclosed in a lemma and palea and all florets produce two lodicules, three stamens, and a gynoecium.
    • The lemma is inserted on the rachilla (the spikelet axis) and, together with the palea, encloses the floret.

Origin

Mid 18th century: from Latin, literally ‘chaff’.

 
 
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更新时间:2024/12/23 17:21:31