The Family of Orchidaceae
The Family Orchidaceae (Orchids or Orchidaceae) is a very large family of flowering plants. This is the most diverse plant family, with over twenty-five thousand species, divided into eight hundred and fifty genera.
They are herbaceous plants, of various kinds, autotrophic or saprophytic, with leaves reduced to scales, or developed, land or epiphytic, perennial, rhizomatous or tuberous, from temperate to tropical. The symbiosis, whether of autotrophic, saprophytic or parasitic, is a fungus that allows the plant to deal with both the absence of any reservation in its seeds, and the absence of rootlets at roots. A family meeting is widespread and the majority of species in the tropics.
The phylogenetic classification is now the family in the order Asparagales.
The name orchid comes from the Greek orchis, meaning testicle, in reference to the form of underground tubers of terrestrial orchids of some temperate regions. According to the authors, the number of plant species in this family ranges from 25 to 30000. These figures make it one of the largest families of flowering plants, which colonized virtually all media, with the exception of deserts and rivers. According to the latest scientific data, obtained through the pollen off an orchid found in amber, this family would be aged 75 to 86 million years. Orchids are monocots, and the family is the closest living relative of the Liliaceae. Orchids have developed particular characteristics that make this family of plants extremely resource-efficient: reducing the number of stamens, symbiosis with a fungus metabolism CAM etc. ...
Source: http://fr.wikipedia.org/wiki/Orchidaceae
See Also: Sending Flowers, Online Florist
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