Wealth of orchid varieties is down to busy bees and helpful fungi, says study

Scientists have discovered why orchids are one of the most successful groups of flowering plants - it is all down to their relationships with the bees that pollinate them and the fungi that nourish them. The study, published tomorrow in The American Naturalist, is the culmination of a ten-year research project in South Africa involving researchers from Imperial College London, the Royal Botanic Gardens, Kew, and other international institutions.
http://www.sciencecentric.com/news/11013110-wealth-orchid-varieties-is-down-busy-bees-helpful-fungi-says-study.html