Callus
Orchid terms
(From Latin Callus – thick skin, a callus) — tissue that forms on the surface of a wound and promotes healing of the injury. Adventitious roots are often initiated in the callus.
Glossary of terms
A reference section with categories and short explanations.
Column (gynostemium)
Orchid terms
An organ unique to orchids, formed by the fusion of the stamens (one or two) with the style and stigma of the pistil.