Floral Shocker: Blooms shake roots of flowering-plant family

1:25pm, March 19, 2008

Imagine discovering a mammal without mammary glands or an insect with eight legs. Aquatic herbs in the genus Hydatella pose a similar paradox—they lack a defining developmental feature of flowering plants, raising questions about their evolution and rampant speciation during the past 135 million years.

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