Researchers Reveal Dwarf Aquatic Plants’ Hidden Ancestry
A team of UBC researchers has re-classified an ancient line of aquatic plants previously thought to be related to grasses and rushes.
The discovery clarifies what may be one of the biggest misunderstandings in botanical history.
“It’s a classic case of mistaken identity,” says Sean Graham, an associate professor and researcher with the UBC Botanical Garden and Centre for Plant Research in the Faculty of Land and Food Systems. ”
Their findings are published in this week’s edition of the journal Nature.
By analyzing the plants at the molecular level, Graham’s team has now determined that these moss-size plants are instead part of an older line of flowering plants that includes the water lilies.
This ancient line split off the main trunk of the family tree of flowering plants soon after they began to diversify, at least 135 million years ago, during the age of the dinosaurs.
Fully grown individuals in the Hydatellaceae family can be as small as 1-2 centimetres in height, and have dozens of minute flowers clustered into each compact flower head.
Native to Australia, New Zealand and India, they thrive in seasonal freshwater pools and swamps, and may blossom underwater at depths of up to one metre, or as the pools dry out.
See also here.
Linnaeus and taxonomy: here.
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