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词汇 cleistogamy
释义

Definition of cleistogamy in English:

cleistogamy

nounklʌɪˈstɒɡəmiklaɪˈstɑɡəmi
mass nounBotany
  • Self-fertilization that occurs within a permanently closed flower.

    〔植〕闭花受精

    Example sentencesExamples
    • The majority of grasses in which cleistogamy occurs have both chasmogamous flowers and either one or two types of cleistogamous flowers.
    • Our review offers insight into the importance and diversity of cleistogamy.
    • F 1 plants had chasmogamous flowers, indicating that chasmogamy was dominant to cleistogamy.
    • R. menthoides cleistogamy is a novel discovery, which augments the number of species of this genus with that reproductive system.
    • Sporobolus is mostly self-pollinated due to a high degree of sheath cleistogamy, while Panicum is a self-incompatible outbreeder.

Derivatives

  • cleistogamous

  • adjective
    Botany
    • Flowering plants had a mean of 9.5 inflorescences on 70 mostly cleistogamous spikelets.
      Example sentencesExamples
      • In addition, 62% of the flowers on these plants were cleistogamous indicating a high level of self-pollination.
      • Nandi suggests that the flowers of L. intermedia Leggett are cleistogamous because of their reduced size.
      • We almost walked by the minute yellow flowers of Utricularia subulata, surprisingly still in bloom, and saw many more plants with cleistogamous flowers.
      • Several insects, birds and mammals have been suggested or proven as likely pollinators, but some species appear to be self-pollinated or even cleistogamous.

Origin

Late 19th century: from Greek kleistos 'closed' + -gamy (from gamos 'marriage').

Definition of cleistogamy in US English:

cleistogamy

nounklaɪˈstɑɡəmiklīˈstäɡəmē
Botany
  • Self-fertilization that occurs within a permanently closed flower.

    〔植〕闭花受精

    Example sentencesExamples
    • F 1 plants had chasmogamous flowers, indicating that chasmogamy was dominant to cleistogamy.
    • Our review offers insight into the importance and diversity of cleistogamy.
    • Sporobolus is mostly self-pollinated due to a high degree of sheath cleistogamy, while Panicum is a self-incompatible outbreeder.
    • The majority of grasses in which cleistogamy occurs have both chasmogamous flowers and either one or two types of cleistogamous flowers.
    • R. menthoides cleistogamy is a novel discovery, which augments the number of species of this genus with that reproductive system.

Origin

Late 19th century: from Greek kleistos ‘closed’ + -gamy (from gamos ‘marriage’).

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