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Orchids 101: The biology behind these elegant flowers

Jan. 21, 2014, 9:19 a.m.
Bulbophyllum echinolabium

Photo: Anna Norris

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Tropical beauties

Tropical climates mean variety — and a lot of it. Of the more than 2,000 species in the largest orchid genus, Bulbophyllum, most are found in the humid rain forest. More than 200 species (including the Bulbophyllum echinolabium shown here) are found in Borneo alone.