For reproduction, orchid flowers have male and female parts joined into one structure. The structure is called the column. The column is the most important quality that identifies the orchid family.
Not all orchids grow from the ground. Some are “air plants” that grow on trees. Unlike parasites, however, they do not rob the trees of nutrition.
BARBARA KLEIN: Visitors are currently learning about orchids at the United States Botanic Garden in Washington, D.C. America’s plant museum and the Horticultural Services Division of the Smithsonian Institution are presenting the show “Orchids: A Cultural Odyssey.”
Among the many visitors, Tonya Johnson came to the exhibit with young children from the Shabach Christian Academy in Landover, Maryland. She helped the children make discoveries about orchids.
STEVE EMBER: Live orchids form a rainbow of colors in the Botanic Garden’s conservatory building. Orchid plants are blooming out of pots, climbing on trees or overflowing from baskets among the garden’s permanent collection.
The world has an estimated twenty-five thousand kinds of orchids. A big blue globe near the opening of the exhibit shows places where orchids grow. The number of species in an area is written near its name.
For example, Costa Rica has one thousand five hundred species. The United States has seventy. The far northern nation of Greenland has four.
(MUSIC)
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25