Vanilla planifolia dermatitis in vanilla plantation workers. Vanilla planifolia Vanilla planifolia is a species of vanilla orchid. It is native to Mexico and Central America, and is one of the primary sources for vanilla flavouring, due to its high vanillin content. Common names are flat-leaved vanilla, Tahitian vanilla, and West Indian vanilla (also used for the Pompona vanilla, "V. pompona"). Often, it is simply referred to as "the vanilla". It was first scientifically named in 1808. "Vanilla planifolia" is found in Mexico, Central America, the Caribbean, and northeastern South America. It prefers hot, wet, tropical climates. It is cultivated and harvested primarily
Orchid mycorrhiza in response to stresses. This is unique in that it conflicts with the trends seen in most arbuscular and ectomycorrhizal symbioses which form associations with several fungi at the same time. The knowledge of species-specific fungal symbionts is crucial given the endangered status of many orchids around the world. The identification of their fungal symbionts could prove useful in the preservation and reintroduction of threatened orchids. Researchers in India have used samples from adult orchids to germinate seeds from an endangered orchid "Dactylorhiza hatagirea" which were found to associate closely with "Ceratobasidium." Orchid mycorrhiza Orchid mycorrhizae are symbiotic relationships between