noun, plural: hila
In botany, hilum pertains to the mark or scar seen on a plant seed or fungal spore from where it was attached to the stalk during development. The hilum on seeds is produced by the separation from its funicle or placenta. In spores, the hilum is formed by its detachment from the spore-bearing structure.
Word origin: Latin hilum (a trifle; a spot on a seed)
- hilus (anatomy)
- porta (anatomy)