Class 11 Botany simulations · Morphology of Flowering Plants

Position of the ovary on the thalamus

Cut a flower lengthwise. See where sepals, petals and stamens attach relative to the ovary, and choose its symmetry.

Open the simulation

What to notice

In epigynous flowers the thalamus grows up around the ovary, so the other floral parts arise above it.

Key relation

Hypogynous (superior) · Perigynous (half-inferior) · Epigynous (inferior)

Try this

Switch to a zygomorphic flower: how many planes now give equal halves?

What you can change

• Ovary position: choose Hypogynous, Perigynous, Epigynous
• Symmetry: choose Actinomorphic (radial), Zygomorphic (one plane)

More in Morphology of Flowering Plants

• Floral formulae of three families
• Phyllotaxy: arrangement of leaves
• Root systems

See all Class 11 Botany simulations or every Physica simulation.