Descriptive Terms
The anther can be attached to the filament in two ways:
- basifixed: attached at its base to the filament; this gives rise to a longitudinal dehiscence (opening along its length to release pollen)
- versatile: attached at its center to the filament; pollen is then released through pores (poricidal dehiscence).
Stamens can be connate (fused or joined in the same whorl):
- monadelphous: fused into a single, compound structure
- diadelphous: joined partially into two androecial structures
- synandrous: only the anthers are connate (such as in the Asteraceae)
Stamens can also be adnate (fused or joined from more than one whorl):
- epipetalous: adnate to the corolla
- didynamous: occurring in two pairs of different length
- tetradynamous: occurring as a set of six filaments with two shorter ones
- exserted: extending beyond the corolla
- included: not extending beyond the corolla
Read more about this topic: Stamen
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