Researchers studying an orchid in a parched, windless habitat have discovered a new twist on self-pollination.
Other flowers pollinate themselves, but none has been reported to do so as acrobatically as the flowers of Holcoglossum amesianum. The orchid grows on trees in the forests of Yunnan, China. It blooms during the dry season, from February through April, says LaiQiang Huang of Tsinghua University in Shenzhen, China. While observing 10 orchid populations over three flowering seasons, Huang and colleagues never saw an insect visit a bloom. It was