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Read Stamens by Fusion and Length
Classify stamens by which parts fuse and whether their filaments differ in length.
NSEB · Morphology of Flowering Plants · 3 linked questions · 100% coverage
Know this first
Living-system questions are solved by matching a structure or organism to its function, process and stated condition.
Structure · The part being namedFunction · What that part doesCondition · The situation that changes the answer
Study deeper: NCERT Biology · Morphology of Flowering Plants
Track the fused part
Syngenesious: anthers unite, filaments remain free (sunflower disc florets). Diadelphous: filaments form two bundles; pea commonly has nine united and one free. Monadelphous: filaments unite into one bundle, as in Malvaceae.
Count unequal lengths
Didynamous means two long plus two short. Tetradynamous means four long plus two short, typical of Brassicaceae.
OlympIQ exam lens
- ✓Syngenesious: fused anthers.
- ✓Diadelphous: two filament bundles; pea 9+1.
- ✓Didynamous 2+2; tetradynamous 4+2.
OlympIQ trap
The suffix clue is useful: syngenesious concerns anthers, not filaments.
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