Dienia

Dienia is a genus of orchids in the family Orchidaceae. The genus was described by John Lindley in 1830. The species within this genus are found in Southeast Asia. These orchids are typically terrestrial or lithophytic, meaning they grow in soil or on rocks. Dienia species are characterized by their pseudobulbs, which are swollen stems that store water and nutrients. The leaves are usually large and strap-like, and the inflorescences are erect racemes bearing numerous flowers. The flowers themselves are often small and can vary in color, commonly exhibiting shades of white, green, or brown. Pollination mechanisms in Dienia are not extensively documented but are typical of many orchids, involving specific insect interactions. The genus is relatively small, with a limited number of recognized species. Conservation status varies among the species, with some facing threats due to habitat loss and overcollection. Further research is ongoing to understand the full diversity and ecological roles of Dienia orchids.