Researchers at Oregon State University have identified a spectacular new genus and species of flowers from the mid-Cretaceous period, a male specimen whose sunburst-like access to the sky was frozen in time by Burmese amber.
“It’s not quite a Christmas flower, but it is a beauty, especially given that it was part of a forest that existed 100 million years ago,” said George Poiner Jr., professor emeritus at OSU College of Science .
Publications were published in Journal of the Botanical Research Institute of Texas.
“Male flowers are small, about 2 millimeters across, but contain some 50 stamens, arranged like a spiral, pointing to the sky,” using paunars and life forms of plants and animals. To learn more about biology and ecology of the distant past, an international expert said in Ambar.
A stamens has anthers – a pollen-producing head – and a filament, stalk that connects the ether to the flower.
“Despite being so small, the remaining detail is still surprising,” Pointer said. “Our specimen was possibly part of a cluster on the plant that had many similar flowers, some possibly female.”
The new discovery features an egg-shaped, hollow floral cup – the part of the flower from which the stamens originate; An outer layer consisting of six petal-like components known as tepals; And two-orbital wings, with pollen sacs that open through posterior hinged valves.
Poinar and colleagues at OSU and the US Department of Agriculture named the new flower Valviloculus pleristaminis. Vulva is the Latin word for leaf on a folding door, locales meaning compartment, plerus refers to many, and staminis refers to the flower’s dozens of male sexual organs.
Ponnar stated that the flower was covered in amber on the ancient supercontinent of Gondwana and climbed a continental plate about 4,000 miles from Australia to Southeast Asia.
Geologists are debating when this land – known as the West Burma Block – separated from Gondwana. Some believe it was 200 million years ago; Others claim that it was like 500 million years ago.
Several angiosperm flowers have been discovered in Burmese amber, most of which have been described by Ponnar and an associate of Oregon State, Kenton Chambers, who also collaborated on this research.
Angiosperms are fertile plants, with stems, roots and leaves, which are fertilized with eggs and develop inside the flower.
Since angiosperms developed and diversified about 100 million years ago, the West Burma block could not have broken up before Gondwana, Poiner said, which is much later than the dates suggested by geologists.
Dinganthus sheds new light on the growth of flowers
Provided by Oregon State University
Quotes: The new flower 100 million years ago brings fresh holiday beauty to 2020 (December 20, 2015), from December 22, 2010 https://phys.org/news/2020-12-million-years-fresh-holiday- beauty.html
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