Centrifugal stamen initiation

• Title

  Centrifugal stamen initiation

• Definition

  A developmental process in which the stamens first initate near the center of the androecium (i.e., around the style) and then progressively toward the outside of the androecium. In other words, the stamens initiate and develop from the inside to the outstide of the androecium.

• Notes

  Hirmer (1918) was the first to point out that stamen initiation of Lecythidaceae was centrifugal and this has been confirmed by others (Leins, 1972; Endress, 1994, 1999). For more information about centrifugal stamen initiation of neotropical Lecythidaceae, see Tsou & Mori (2007). For the most part, stamen initiation of neotropical Lecythidaceae starts on the abaxial side of the androecium. This character needs to be study with SEM images from the earliest buds to be able to determine which series of staminodial primordia initiate first, the length of the stamens of a mature flower will not reveal the nature of this character because the outermost stamens may be longer than the innermost even those their primordia initiated earlier.

• Related Terms

  Centripetal stamen initiation

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