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Orchids (Orchidaceae family)(Chinese:兰花) are the largest and most diverse of the flowering plant (Angiospermae) families, with over 800 described genera and 25,000 species. Some sources give 30,000 species, but the exact number is unknown since classification differs greatly in the academic world. There are another 100,000+ hybrids and cultivars produced by horticulturists, created since the introduction of tropical species in the 19th century. The Kew World Checklist of Orchids includes about 24,000 accepted species. About 800 new species are added each year. Orchids, through their interactions with pollinators and their symbiosis with orchid mycorrhizal fungi, are considered by some, along with the grasses, to be examples of the most advanced (derived) floral evolution known.All orchid species are protected for the purposes of international commerce under cites as potentially threatened or endangered in their natural habitat, with most species listed under Appendix II. A number of species and genera are afforded protection under Appendix I, including all Cypripedium, Mexipedium, Paphiopedilum, Phragmipedium, and Selenipedium species. Many other species are protected by both international and national legislation, and while hybrids are supposed to be specifically exempted, hybrid orchids are not allowed into the United States without a cites permit. The reason that is given is that the authorities cannot distinguish the difference between hybrids and species.
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Cymbidiumor boat orchid, is a genus of 52 evergreen species in the orchid family Orchidaceae. The new Latin genus name is derived from the Latin cymba meaning boat. Its first known use was in 1815.This genus is distributed in tropical and subtropical Asia (such as northern India, China, Japan, Malaysia, thePhilippines, and Borneo) and northern Australia. The larger flowered species from which the large flowered hybrids are derived grow at high altitudes.The species Cymbidium hookerianum is considered a delicacy in Bhutan where it is traditionally cooked in a spicy curry or stew and called "olatshe" or "olachoto".It is sometimes confused with Cyclanthera pedata, another local delicacy (the nomenclature has not been clearly established; there are indications that "olatshe" usually refers to Cymb. and "olachoto" to Cycl., although not consistently).
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