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单词 extrafloral
释义

Definition of extrafloral in English:

extrafloral

adjectiveˌɛkstrəˈflɔːr(ə)l
Botany
  • (of a nectary) situated outside a flower, especially on a leaf or stem.

    〔植〕(蜜腺)花外的(尤指在叶或茎上)

    Example sentencesExamples
    • The calyx, the subtending bracts and the two prophylls bear groups of extrafloral nectaries (single peltate trichomes).
    • But also, a small beetle was observed on a single occasion feeding on nectar from the underneath of the mesochile where a nectar drop is usually found (a possible extrafloral nectary).
    • In addition, extrafloral nectar and nectaries are widespread in Ipomoea in petioles and/or in epals that are mostly visited by ants and serve as a herbivore defence mechanism.
    • This group is morphologically characterized by boat-shaped extrafloral nectar cups and a long inflorescence axis exhibiting a more racemose arrangement of the flowers.

Definition of extrafloral in US English:

extrafloral

adjectiveˌekstrəˈflôrəl
Botany
  • (of a nectary) situated outside a flower, especially on a leaf or stem.

    〔植〕(蜜腺)花外的(尤指在叶或茎上)

    Example sentencesExamples
    • The calyx, the subtending bracts and the two prophylls bear groups of extrafloral nectaries (single peltate trichomes).
    • In addition, extrafloral nectar and nectaries are widespread in Ipomoea in petioles and/or in epals that are mostly visited by ants and serve as a herbivore defence mechanism.
    • But also, a small beetle was observed on a single occasion feeding on nectar from the underneath of the mesochile where a nectar drop is usually found (a possible extrafloral nectary).
    • This group is morphologically characterized by boat-shaped extrafloral nectar cups and a long inflorescence axis exhibiting a more racemose arrangement of the flowers.
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更新时间:2025/7/5 12:45:50