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单词 sympetalous
释义

Definition of sympetalous in English:

sympetalous

adjectivesɪmˈpɛt(ə)ləssimˈped(ə)ləs
Botany
  • (of a flower or corolla) having the petals united along their margins to form a tubular shape.

    〔植〕(花朵,花冠)合瓣的

    Example sentencesExamples
    • While the perianth can lack the corolla, much of the terminology associated with the perianth deals with shapes of sympetalous corollas.
    • The sympetalous families are believed to be members of a younger group (appearing in Early Tertiary) than the dialypetalous ones.
    • A sympetalous corolla typically consists of three parts - the lobes, the throat, and the tube.
    • These are the plants characterized by sympetalous corollas, epipetalous stamens, and having the number of stamens equal or less than the number of corolla lobes.
    • Please take some time to observe the flower shapes among the various sympetalous flowers.

Derivatives

  • sympetaly

  • noun
    Botany
    • The fusion of the corolla lobes to a sympetalous corolla is late (late sympetaly) taking place by meristem incorporation and fusion across the backs of the anther primordia.
      Example sentencesExamples
      • Within a single genotype, gerbera flowers may vary in a number of parameters, including sex expression, symmetry, sympetaly, and pigmentation.
      • There are thus two directions of adaptation: from polypetaly [many petals] to oligopetaly [fewer petals] and from separate petals to sympetaly [fused petals]
      • This kind of sympetaly is otherwise unknown in the Clusiaceae.
      • This may be a primitive character-state expression for the family (choripetaly in Azima is presumably less specialized than incipient sympetaly in Salvadora).

Definition of sympetalous in US English:

sympetalous

adjectivesimˈped(ə)ləs
Botany
  • (of a flower or corolla) having the petals united along their margins to form a tubular shape.

    〔植〕(花朵,花冠)合瓣的

    Example sentencesExamples
    • The sympetalous families are believed to be members of a younger group (appearing in Early Tertiary) than the dialypetalous ones.
    • These are the plants characterized by sympetalous corollas, epipetalous stamens, and having the number of stamens equal or less than the number of corolla lobes.
    • Please take some time to observe the flower shapes among the various sympetalous flowers.
    • A sympetalous corolla typically consists of three parts - the lobes, the throat, and the tube.
    • While the perianth can lack the corolla, much of the terminology associated with the perianth deals with shapes of sympetalous corollas.
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更新时间:2024/12/26 23:58:29