didymous

Pod 2-seeded, didymous; the valves rugose, separating at maturity from the little partition as 2 closed 1-seeded nutlets.

Fruit didymous, the 2 carpels each splitting into two 1-seeded nutlets; style elongated; flowers scattered, large.

Filament slender; anther 2-celled, didymous; the cells dehiscent transversely; pollen-grains large, spherical, muricate.

Pod top-shaped, globular, or didymous, thin, its summit or upper half free from and projecting beyond the tube of the calyx, loculicidal across the top.

Seeds two, roundish, joined into a didymous shape, downy.